This isn't something we will be able to act on retroactively. What I mean is that if nobody in our government or military stops Trump from going nuclear in Iran there is no going back. If he isn't stopped until after it happens, nobody in the entire world will trust Americans ever again and we will all be hated (even more than we already are). This is the single biggest avoidable threat to national security that has ever existed. It's already the case that nobody outside the US cares if you are one of the "good ones" or not. If this fuck-face does what we all think he wants to do, the US and its citizens will be internationally considered a threat to everyone elses national security and will be cut off from the rest of the world indefinitely.
Nobody will give a shit who you voted for or which protests you went to or not, everyone will hate us and rightfully so. If Trump goes nuclear in Iran it'll be the end of the American Empire basically overnight.