There is absolutely no reason to subject yourself to the company of people who you disagree with.
"In the current, digitized world, trivial information is accumulating every second, preserved in all its triteness. Never fading, always accessible. Rumors about petty issues, misinterpretations, slander. All this junk data preserved in an unfiltered state, growing at an alarming rate. It will only slow down social progress, reduce the rate of evolution. The digital society furthers human flaws, and selectively rewards development of half-truths." "Everyone withdraws into their own small gated community, afraid of a larger forum. They stay inside their little ponds, leaking whatever "truth" suits them into the growing cesspool of society at large. The different cardinal truths neither clash nor mesh. No one is invalidated, but nobody is right. Not even natural selection can take place here. The world is being engulfed in "truth." And this is the way the world ends. Not with a bang, but a whimper."
Not that it's 100% applicable. But it's interesting to see this from a game released in the year 2001.
But one good reason for having discussions with people you disagree with is that you get to see things from a different perspective and maybe learn something too.
Depends what you're disagreeing about and whether all parties want to have a discussion in good faith, which seems to be in shorter supply these days.
Otherwise we just stay in our bubbles and enjoy the echo?