Good question. Bad comparison.
Germany, like other countries at the time, was going through a recession and a populist leader, blaming the government of the time for all the ills, became popular. If you listen to the Speeches Hitler gave he started of quite reasonable and slowly worked the crowd into a fever. We are only seeing snippets of those speeches near the end on the news and he looks like a lunatic. It is easy to make Trump (and even Biden) look like a lunatic as well.
He used fear and hatred towards minorities, (Jews, gypsies, foreigners, homosexuals, etc) We see similar things today with nationalist in the US. Coincidentally Germany in that time was mostly protestant as well and Hitler publicly appealed to their sentiments, even though he most likely was an atheist himself. It was nothing new, he build upon existing hate, the seminal figure of the Protestant Reformation, Martin Luther, who wrote "Von den Jüden und iren Lügen" A nasty piece of work where he advocated to persecute Jews.
International treaties under Hitler were broken, again similar to what we see today with nationalistic right wing authoritarians who use the fear for international cooperation, like the WHO. Even the hatred towards homosexuals are back in vogue.