He is a fraud and people know it. I think they are supporting him simply because he's different and not a politician and somehow that gives them hope. The only supporters I ridicule are the ones that emulate his behavior because wow, that's some serious mental health issues going on. Remember how Hitler got elected? Germany was not doing well and Hitler made them feel empowered even if that false feeling sunk the ship. Even if half their country laid in ruins and the whole world turned against them. False hope for some is better than none, false sense of self is sometimes better than staring at the mirror. These are the same people who lack personal responsibility and blame all their problems on the government or on black folk, Mexicans or on women, they can't take responsibility for themselves. Since Trump has the same problem perhaps it comforts them. 
Self reliance is key, in my bizarre thoughts, the only way to stop this countries destruction is to quit feeding the system!