I can understand the impulse to point out when some of Trump's actions do echo things that Hitler did.
But in general think it not only can lead to trivialization of that era but also don't think it really helps in progressing the current discussion as both sides tend to dissolve into a historical back and forth rather than focusing on the present.
Of course it doesn't help that the president himself is prone to it
https://www.washingtonpost.com/news...nti-defamation-league/?utm_term=.f7db023b1768
“Intelligence agencies should never have allowed this fake news to ‘leak’ into the public,” Trump wrote on Twitter. “One last shot at me. Are we living in Nazi Germany?