If you dislike their politics, so be it - donate to campaigns or personally run against them. Write a letter explaining how you'd like them to vote.. But the amount of absolute crass behavior people allow "because it's the internet" is mind boggling.
I don't even think it's "because it's the internet." "In Real Life" political discourse has been getting significantly more and more crass and more and more belligerent in the last 10-15 years. Go over to YouTube and bring up some Reagan-Mondale or Clinton-Bush debates and compare their tone and temperament to what we see today. People still felt strongly about the issues back then, but we weren't so constantly hurling threats and potty-mouth insults all over the place like today.
Reminded me of a fascinating video I recall; Bush and Reagan debate illegal immigration in 1980's primary. https://www.youtube.com/watch?v=YsmgPp_nlok
They sound more liberal than half of today's Democrats.
Granted, this was in a smaller venue, but seeing H.W. actually consider the question on the spot and deliver an on-topic, detailed answer outlining his position was... refreshing.
Presumption that the question is valid and interesting, the asker is to be respected, and supporters of the platform espoused and opponents have good points and should be respected.
Empathetic disagreement is not something you typically see anywhere recently. It's been boiled down to staccato sound bites.