More in the comments!

From the first link, "The tax revenues that unauthorized immigrants generate for state and local governments do not offset the total cost of services provided to those immigrants."

The second is dated, covers visa overstays, and only counts those from Mexico.

but all together in the long term, tax revenues of all types generated by immigrants—both legal and unauthorized—exceed the cost of the services they use."

and yes it covers only Mexicans, which are decreasing, but in the politifact article it says, "If the number is falling, that means more illegal Mexican immigrants are leaving the United States than entering it. The numbers include both immigrants who entered the U.S. illegally and those who overstayed their visas."

If it is so safe and wonderful, let them live in your house with you, you commie liar.

The Congressional Budget Office reported in 2007 that "the tax revenues that unauthorized immigrants generate for state and local governments do not offset the total cost of services provided to them" but "in aggregate and over the long term, tax revenues of all types generated by immigrants—both legal and unauthorized—exceed the cost of the services they use."
https://www.cbo.gov/sites/default/files/110th-congress-2007-2008/reports/12-6-immigration.pdf
https://www.politifact.com/wisconsin/statements/2017/apr/26/ron-kind/yes-experiencing-net-outflow-illegal-undocumented-/

Most drugs come through legal ports of entry, and illegal immigrants commit crime at a lower rate. Illegal immigrant workers are 5% of all workers.

More than half of illegal immigrants are on welfare and they make up 13% of all crime - way over-representative of their population numbers. Plus it's illegal. We need to control immigration and part of that is dissuading illegal immigration. It's an issue that will pay for itself if we can make some serious headway on border security. Crisis, issue, concern... wall, barrier, steel slats. Don't get hung up on words. It's a problem worth fixing.

The first is completely false. An estimated 49 percent of households headed by legal immigrants used one or more welfare programs, but that is LEGAL immigrants. Can I see where you found that. I got mine from https://cis.org/Report/Welfare-Use-Legal-and-Illegal-Immigrant-Households.
And, illegal immigrants cannot use welfare. The only was is if they are born here, but that makes them constitutionally citizens.
As of the crime, I dont believe that either. The only state that measures illegal immigrant crime in a database is Texas. In Texas illegal immigrants commit 5.9% of the homicides, and are 6% of the population. While they commit a close rate of murders in Texas, undocumented immigrants are about half as likely to be incarcerated as native-born Texans. https://abcnews.go.com/Politics/fact-check-trumps-claims-illegal-immigrant-crime-rates/story?id=60311860
However, every crime by an illegal is one that shouldn't have happened in the first place and it is a problem. The amount of illegals is going down too I should note.

I was partially mistaken - 51% of ALL immigrants are on welfare, not just illegals. Interestingly, I also found that 70% of Hispanic immigrants are on welfare. These are the ones that are supposed to be getting in on merit?? I just researched myself to the realization that immigration in general needs some stricter management, not just illegal immigration haha. WIC and public hospitals are welfare programs that are easily taken advantage of.

Illegals are def over-represented in crime tho

If we're gona focus on murder then sure they do about 5.9% compared to about 5.4% for all legal residents (somewhat more interesting is the 1.47% per capita murder rate for white people - might start a conversation about race and behavior predictors, although I'm more likely to blame gang culture than genetics). So not a huge difference between the general population, but still a higher rate. However, a report from 2018 says that 24% to 30% of inmates in federal prisons are illegal immigrants. That's going to include rape, theft, drugs, assault, etc.. more than just murder. Their incarceration costs us about $1.5bn per year. "About 40 percent of individuals convicted as a result of DOJ terrorism-related investigations were aliens".

"The U.S. Department of Justice and the U.S. Sentencing Commission reported that as of 2014, illegal immigrants were convicted and sentenced for over 13 percent of all crimes committed in the U.S."
https://thehill.com/blogs/pundits-blog/crime/329589-the-truth-about-crime-illegal-immigrants-and-sanctuary-cities

"Only the states of Texas and Florida do illegal immigrants commit less crimes than their legal immigrant counterparts" BUT
"between June 2011 and March 2017, over 217,000 criminal immigrants were arrested and booked into Texas jails...it was confirmed by DHS that...66 percent...were here illegally"

I was gonna keep going but imgflip is limiting me

https://www.gao.gov/assets/320/316959.pdf
https://www.census.gov/sipp/workpapr/wp246.pdf
https://www.usatoday.com/story/news/nation/2015/09/01/immigrant-welfare-use-report/71517072/
https://www.dps.texas.gov/administration/crime_records/pages/txCriminalAlienStatistics.htm
https://ucr.fbi.gov/crime-in-the-u.s/2016/crime-in-the-u.s.-2016/topic-pages/tables/table-21
https://www.washingtontimes.com/news/2018/jun/7/30-percent-federal-prisoners-are-immigrants-dojdhs/
https://thehill.com/latino/331619-doj-releases-data-on-incarceration-rates-of-illegal-immigrants

Wow the Washington Post link is ridiculous. Thats horrible, our prisons. And America treats its prisoners good. Im fairly sure that you get better food in an American prison than an average El Salvadorian.
As for stricter immigration in general, as someone from a family of immigrants I know how it works. One person in the family, gets a degree, an enormous feat for somebody that poor. Then he gains citizenship. He can then get in his brothers, parents, and their children, who dont inherently have much merit. As for Hispanics, the reason their immigrants are poorer and thus more likely to be criminal is because of the distance. Chinese immigrants for example, have to get the money for a plane to the US, which cuts out a good amount of immigrants. Richer immigrants can come, and thus they will be smarter and do less crime. Hispanics can walk/drive, so they can be poorer. Culture of course plays into it.

Back to the point, I guess it makes sense that criminals would do more crime. You've proved that, and the hill article especially makes it without a doubt. These jailing costs and schooling are probably high, but they do pay taxes that they dont get the benefits for. https://www.theatlantic.com/business/archive/2016/09/undocumented-immigrants-and-taxes/499604/
Its very unclear but I think they help the economy. There will be a labor shortage, and prices will go up vastly without illegals. https://thehill.com/blogs/congress-blog/foreign-policy/203984-illegal-immigrants-benefit-the-us-economy
The crime is horrible, but they make us money, so I really dont know.

I'd be cautious about rationalizing crime with money. That's a bad way to think.

If 100% of illegals were to disappear there would undoubtedly be an economic hit, but that would be short term. Things would adjust. Plus the idea here is to stem the flow. This would make the effect much more gradual and cause less of an economic impact.

I just found an interesting video in my search about the population numbers and crime stats. Kinda makes my last stats look mild compared to what it really could be. Thanks to Obama taking the citizenship status question off the census we'll have incomplete data, but this guy did some good extrapolating to reach some interesting numbers.

https://www.youtube.com/watch?v=jZCSFe31qWk

How was Trumps question ruled unconstitutional? I dont get it. The video was super interesting though. Spanish immigrants are not high skill, but they could assimilate soon, much like Italians. Assimilation will make it where Latinos vote more conservatively.