Palin, for example may have had similar opinions but was not charismatic. Trump on the other hand sounds like your regular blue collar worker --I've known black as well as white blue collar workers and they speak just like that. When they make a mistake, they don't try to explain it away like a Clinton or a Bush. Nah, they just come out and say, yeah, I was probably wrong and this is why and offer some plausible support for the argument. Also, I think lots of working class people have felt funny about politicians tiptoeing around issues rather than just being a bit "vulgar" about things and that appeals to some people. If you ever listen to how people who take buses to the poorer areas of town talk, just sit at one of those stops long enough you'll know what I mean. They are unfiltered and speak as they feel without any affected tiptoeing.