^Interesting graph. But the poll is only conducted among GOP supporters, many of whom like his claims to build a wall and keep Muslims out (he's going to do neither). Trump has a lot of support among independents and democrats too, and they are probably supporting him for different reasons than GOP hardliners.
Trump has more support among Muslims than the rest of the GOP field combined. Similar with hispanics. You cannot claim with a straight face that they support him because they want to see all Muslims banned, can you?
Authoritarian progressivism is an idea so un-real and false that even wikipedia doesn't have a page for it. Trust me, I searched for it.
You just looked at the wrong place. A present example of authoritarian progressivism is the social justice movement. Another is Black Lives Matter. Their rhetoric might differ from the KKK, but their goal is the same: supremacy based on skin color, gender etc.
Both Hillary and Bernie pander to these authoritarians. It's funny how Trump's disavowal of David Duke was allegedly not emphatetic enough, but nobody bats an eye when Democrats openly support authoritarian supremacy movements.
Historical examples of authoritarian progressivism: fascism, nazi'ism, communism.