It's hard to feel sympathy for Trump voters in general, but certainly there are some specific Trump voters who might deserve sympathy.
Just as some people are raised racist, homophobic, etc. but change their tune once they actually meet some POC, LGBT people, etc., there will be people out there who have just absorbed general vibes of "Republicans = good economy, Democrats = bad economy" from everyone in their lives and never experienced anything that made them question it. Some people are well-intentioned, but... really dumb and oblivious.