If Trump starts genuinely acting like Hitler, then the eyes of the whole whole world will be on him. But so far, no one has been killed, to my knowledge.
So comparing his detention center in the Florida swamp (no matter how inhumane it may be) to Auschwitz remains offensive to everyone who lost family there, which was a literal death camp where over 1 million people were murdered in a systematic way.
If Trump starts a similar program, then yes, we need to be on the lookout.
So far, he has not killed anyone that I am aware of.
If he actually starts killing people en masse, then we will need to take action.
Send in the useless UN, or someone.
Stop comparing everyone to Hitler, ffs.