The term Christian nationalism does not refer to Christians who are patriotic, it refers to Christians who want to make the government explicitly Christian. That's illegal.
And there are many Christians who not only believe that, but have openly said that. Did you know there are Christians in the United States who think that the government should use taxpayer money to promote Christianity even though that's against the law?
If you read the Bible, it's clear that God is okay with killing children (he does it numerous times) and letting a man have multiple wives (he doesn't prohibit that)
Talking about what the Bible says is just reading from a storybook. I have no reason to believe that that story is true, just like I have no reason to believe that any other creation myth is true.
If God created a world and humans messed it up, it's God's fault for making the world that could even be messed up in the first place. Why can't the perfect God make a world that humans couldn't mess up?
How can you tell the difference between a god that is giving us time to repent and a god that doesn't even exist?
When I say that I don't see evidence of an intelligent designer, I am not saying that's proof that one doesn't exist. I'm just explaining the reason I don't believe in one.
"All the planets of the solar system hold the earth in right place"
No they don't, gravity keeps the Earth around the sun
"in the just right conditions to make life possible"
If the universe was designed for life, wouldn't the conditions to make life possible exist on every planet?
What you're doing is taking the way things are and saying that they were intentionally meant to be this way. Just because the conditions on this planet are suitable for life doesn't mean this planet was made specifically for life.
"Our solar system is in just the right place in the galaxies that we can see the galaxy itself"
If our solar system were anywhere else in the galaxy, we would probably still be able to see the galaxy. But even if we couldn't, so what?
"and we are far away from many of the dangers that the Milky Way holds (like quasars and black holes)"
You're just doing the same thing again. You're taking the way things are and saying that they had to be this way on purpose.
"Our galaxy works like a clock (and looks a little like one too), which keeps our planet unchanging enough that life can exist and thrive."
Life exists on this planet right now. Life has not always existed on this planet and life will not always exist on this planet.
It's my observation from looking at the world around me. I don't see any evidence that this universe was created by an intelligent designer because of all the things that an intelligent designer probably wouldn't have included in this universe.
If you think an intelligent designer made everything, how do you explain the things that look poorly designed?