Lots of reasons. He was black. He was a Dem. He was from Chicago. He was not a Bush. He was supposed to make Islamist peaceful. Etc. Etc. They will vote for Hillary for same reasons except she is a women not a black. The American general population is pretty much a lost cause locked into a federal debt load impossible to pay off. Only a revolution can save em now.
A revolution by states nullifying unconstitutional fed acts. It’s doable and its time. There are some regions and states that still believe in our Free Constitutional Republic. Now’s the time IMO. State by state. Let the feds go and let leftist states go.