People who needs love. They choose an idol and love them unconditionnally, irrationally. Some loves Trump, some loves Jesus, some loves BTS. They just want to look up to somebody sothey don't feel alone.
Oh boy this is going to be totally non-controversial post lol.
My 2 cents? Trump does not care about others. He is a classic narcissist. There are plenty of psychological and cultural reasons people are supporting him, but they are all irrelevant to the fact that Trump himself is a monster. Those who cannot see that lack empathy for others, and to be PROUD of that breaks my heart.