> The concentration camps had gas chambers to kill people.

First concentration camps were create right after the election 1933 and the gas chambers were not invented yet. They were used against political opposition first, minor criminals second and only then Jews/homosexuals/etc. The regime had to consolidate power and invent the gas chambers first. The deportations, general violence, arrests on made up excuses, exclusion of jews and opposition from public life happened at the beginning.

Trumps rhetoric against Somalis in particular has strong echoes. So does the strategy of arresting and beating people on ethnic membership only.

> Nazis were systemic against a religion

Kinda yes kinda no. Religion was competitor against power ... but klerofascism was a thing. The pope was kinda neutral. And then you have places like Slovakia where catholic church priests were not just facilitating holocaust, but literally leading it. Religion was fairly frequently anti-semitic itself.