They believe he will hurt the right people (to them); marginalized people.
This is incorrect.
People backed Donald in 2016 because, at that time, they'd had enough of the disappointment and impoverishment brought to them by Obama's politics and the promise that those politics would continue under Clinton. It was the same under Biden/Harris, where consumers watched their basic needs double and triple in cost and their response was 'just be joyful about it'.
Donald, in both cases, was the change candidate, and the majority wanted change more than anything else.
There is a smaller contingent that, yes, did back him because of his hateful energy, but not the majority. The majority just want to be able to pay their bills without having to work 100 hours a week.