"What do you have against Trump?"
Confirmation bias, his inability to comprehend information, his inability to competently act with what little information he has, his divisive language before playing the victim, and his general political inexperience. No evidence has been shown, in my opinion, that he's improved over time.
"Do you just not like Americanism?" I do, but I do not have a selectively narrow perspective about what that means. For the most part, I agree with his "America First policy" but the execution leaves more to be desired. He hardly leads by example, after all.
"Do you hate his stance on securing the border?"
I think funding for border security is very important. More important than simply a construction of a wall that can be climbed, flown over, tunnelled under, swum around, or otherwised bypassed.
"Maybe his stance against unnecessary taxes?"
Yes, we're in incredible debt. It seems imprudent to ignore that, especially skyrocketing spending on such a personal project as a wall to make him look good and make his base think he's contributed something well within his area of expertise. It is a shallow contribution at best, and a prideful one at worst.
"Maybe it's his stance news sources"
Fame is hard.
"Do you just hate the fact he tweets a lot and goes after the liars in the mainstream media?"
Yes, I think if he focused less on social media and what mainstream media thought of him he'd get more done. After all, if you're satisfied with what he's done so far, imagine what more he could do without it.
Who cares if he didn't "garner the popular vote?"
Again, this was an RNC move. A bold one. It sort of worked and he is managing to pull the Republican Party together, but he appears to be pulling it inside a dumpster fire.
"So you HAVE to have experience to become President?"
At this point, I'm willing to concede that experience is a top priority. Even Reagan had a modest amount of how legislation works before he tackled the executive branch. I'd say it was vital for him given he too was marred by the media for being "inexperienced". He didn't refuse to do Press Conferences and Correspondents Dinners. In fact, he slayed them with his wit.
"And what exactly makes him a blowhard?"
His boasting.
"Obama, Bush, and Carter were unsuitable for office and their records showed it."
Mmm, I'd argue Bush was suitable for office. Unless you mean his son, then yes but I still voted for both for a second term.