The stupid, poorly educated cultists Trump pretends to love are not governed by facts and evidence, but by fear. They fear directions the United States is moving in. Christian conservatives fear a populace that is becoming increasingly secular and hedonistic. White blue collar Republicans fear being replaced by non whites at home and abroad, and by computer technology and automation. Small business men fear socialism when they should fear the big companies which will eventually drive them out of business.
The following meme captures Trump's appeal for them:
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