Well, that's the problem with living in a democracy. If most people only feel comfortable when the legislators and judges are fellow Christians and the schools teach creationism, then that's what you're going to get, and depending on your interpretation, maybe that's what you should get.
Not quite. We live in a constitutional republic.
Next, creationism isn't science. It's justifying a bible story as where people and the earth came from. Many (if not all) religions have creation stories. The christian story has been perpetrated as some sort of pseudo science garbage that one does not need to prove to teach.
So, just to understand you: Because I don't try to shove my beliefs down others throats, it is my fault that others try the same to me?
Perhaps the reason you feel so accosted is because you are don't see proselytizing as important, and consequently, have no support because your fellow believers are so few.
No. I have my unique set of beliefs. And in certain cases, I have proof. I can't demonstrate that proof, and I don't really need to. I'm probably the only person on this planet to have these very specific set of beliefs.
Why does my belief have to be challenged? I don't questions yours: I only say "Keep your practices to yourself, unless somebody else asks."
Why does it matter if creationism is science? Art and literature aren't science either, but they are taught in schools because people think it will make the students better off. Religion is no different.
If part of your belief was that spreading your belief to others helps them, then you would do it. Religions that have such a belief will grow faster. Nobody's "at fault", that's just how it turns out.