Anyone that voted for Trump is either a racist/sexist/etc and voted for him for those reasons, or they are not racist/sexist/etc directly themselves but have no problem that Trump is. Those are the only two options.
Neither group of people is good people in my opinion. I know that seems very controversial these days.
If someone doesn't see Trump and find reasons to not support him every single fecking day for four years, sees the harm he's doing to millions of people and still decide to hop down from their fence to his side because someone called out those specific things or called them something online, there was no hope anyway.
This isn't a slight difference in opinion on how taxes are spent, or what the military budget should be, it's about supporting one of the worst human beings on the planet.
If you think you can convince someone by being polite or whatever then go for it, I genuinely hope you succeed. But the fact someone even needs to be convinced not to support Trump in my opinion tells me it's a waste of time and that it should not be up to others to be nice and accomodating.