alt Hacker Newsand if someone opposite the aisle from you believes the same thing about you, there's zero chance to flip them
with direct discussion about values, it's possible
basically all comes down to "are you open to the chance you're wrong"
you could view that chance as low as 0.001%, but it shouldn't be 0
People frequently have a gap between their values and their politics, and talking about both can reveal the cognitive dissonance.
If they engage with politics as tribalism, and you talk to them about a policy their tribe implemented that conflicts with their values, this is useful.