I have an Uncle in Ohio who I love dearly. Truly a salt of the earth type guy that would literally give you the shirt off his back if you needed it. I've never heard the man make a racist remark my entire life. He's just a genuine good person. He's also more a blue collar type guy. He's not uneducated, he went to a local state college, but he's also not your Ivy League New York consulting/Wall St type person. He's the type that's been left behind by globalization. He's a Trump supporter.
I called him a few weeks back and said "why Trump Uncle Mike"? Right or wrong he likes Trump protectionist trade rhetoric and his bring back the manufacturing jobs rhetoric.
I can't speak personally to why all the other people support Trump but that's my one family story.