For closed minded people that might be the case. Trump grows on you. When you can tell when he's being provocative vs when he really means it, you'll start appreciating what a really funny sense of humor he has. He's got that kind of mind that plays with ideas. Sometimes what he puts out there is an idea that's forming, not a fully developed conclusion.
Besides that, he's a force of nature. Think back to the beginning of the campaign, when the ptb were throwing everything imaginable at him. Who else could've survived that onslaught? Folks are enjoying not being slaves to politically correct speech. Add to that, his campaign is FUN, and you'll begin to see why he keeps drawing more people in.
I find that the more you are exposed to him the more he grates on ones nerves. Braggarts are like that even well meaning and humorous ones.
I stand by me statement you either like Trump or you don’t no middle ground.