I’m not in favor of toeiva marriage. But personally I could care less whether my friends and family are. We have 613 mitzvos and Chazal were very detailed in explaining the kinds of middos we should strive for. But nowhere is there a mitzvah or virtue in having the correct political opinion, or convincing others that they’re wrong and we’re right!
It is, however, extremely important to be humble, treat others with kindness, and judge one another favorably. Yet when people are convinced their political opinion is correct, they become very arrogant, are rude to others, and vociferously denounce others who dare to have a different opinion. This is not the Torah way.
Of course, it is in general good to be well-informed and vote for the person we think is best — and I certainly believe in doing that. But let’s say someone never read the news, knew zero about politics, and never voted, but instead spent their time on Torah and mitzvos. Have they sinned? What have they done wrong? A single individual opinion (or vote for that matter) makes little or no difference. If King Shlomo was alive today, surely the updated Koheles would talk about how political discussions are vanity and nothingness and a distraction from our true task in this world.
I’ve only lost one friendship based on political opinion. It was somebody who couldn’t stop angrily rambling about 9/11 conspiracy theories and other nonsense. If he had been able to keep his mouth shut and talk to me about things we had in common, then I would’ve stayed friends.