Let Musk's nazi salute be the litmus test.
Any politician, journalist, media outlet...or even the dude at the end of the bar - if they try to convince you that you didn't see what you saw, or that it doesn't mean what you know it means, or that Musk didn't understand what it meant or it was a mistake...
That person thinks some people need to be deported or killed, and would stand aside if not help when the time comes.
Period.