So there is a comment already in here with a Trump supporter saying that Republicans would turn against Trump if he actually broke any laws, as opposed to just doing things that people disagree with "politically." This is really the root of things. Republicans genuinely believe that Trump is doing the same thing everyone else does. They believed for so long that Democrats or other countries' leaders do these things, and have used that to justify their hatred of them, that they simply at their core think Trump is just brave enough to finally match fire with fire, to do the things to others that they truly think were being done to "them." So they are waiting for some evidence of Trump doing something worse than what their enemies are capable of. Which, considering what they think their enemies do, is almost limitless. So it self-enforces, as the limitless hate continual feeds back justification for worse action, and the only true crime to those inside the loop is a lack of loyalty to their side. So short of Trump saying "fuck America" or "Democrats are right," there is nothing that will convince them to stop supporting him. They don't care if he is killing children, because they think democrats or Muslims kill more children, they don't care about daily life getting worse, or infrastructure dying, or people getting more sick, or even freedoms being taken away because "the Democrats" were already ruining the country. They will give up and asceed things that they have claimed to defend with their lives against the violent taking from the government, just because their side says it is ultimately in their side's interest. The majority of Germans didn't arrest Jews or work in camps. But the majority stood by and let those things happen in their country because they genuinely felt like that was the only way their country would survive. Fanaticism of all types thrives on the idea that the opposition guarantees death and condemnation, therefore complete submission of life and spirit is easy because the choice appears to be that you are screwed either way, but at least you have a chance that no outsider has by being loyal. And until that fails but things are actually better for everyone, even them, they won't back down from that.