Hitler was an evil man and you know that from the fruit of his work, the mass annihilation of ethnic groups. He was pure evil. He killed people simply for their Israelite heritage. That being the case, it's only natural in the modern American political landscape that from time to time you see various politicians likened to Hitler by their detractors. After his comments on general immigration and specifically Muslim immigrants and visitors, Donald Trump is the latest target of the "Hitler Attack"and his supporters are likened to Hitler's supporters.
Don't get me wrong, I'm no Trump supporter. I think the guy is a joke and frankly, I wish he would sit down and shut up. However, to compare him to Hitler; that's wrong. It is as wrong to the Jewish people, the cripples, the infirm, and the rest of the "useless" people who suffered under the Nazi regime as it is to Trump himself.
If you really feel the need to compare someone or something in America to Hitler right now the only valid comparison I can think of is the abortion movement, Planned Parenthood and other abortionists. They are busy caring on his work, cleansing the population of unwanted but innocent life and I guess that makes the pro-death crowd comparable to his supporters.