This is always a personal choice.

Bear in mind you do yourself a disservice by believing rag headlines (common dreams, daily beast, new republic, etc) in an echo chamber. Talking to people who don’t agree with you will tell you more about present politics, in terms of what the “other guy” is thinking. It’s also an opportunity to pick things apart in chill discussions and find the point where you digress instead of assuming.

Flippant remarks are typically engaged in areas people haven’t spent time or mental resources on. They’re more likely to be verbal passcodes for a social group. You could find out. Where the jokes stop is usually the more viscerally believed area.

Or maybe that’s just me who has an interest in that sort of thing. That said, you can encounter people you start to sway with reasonable discussion based in listening to everything they want to say who then get angry, yell that they can’t talk to you any more, who then simply go away.

To be fair I have all the energy in the world for strangers because they’re often 1-4 encounters and done. In my personal life, I have the energy and wherewithal to maintain 1, and that is probably only because they’re my closest genetic link.