Maybe a different religion, or especially political beliefs seems to be a big deal-breaker. Do you still find it worthwhile to keep them in your life?
I do. I have e.g. Christian Conservative friends, and Atheist Liberal ones, etc. I enjoy each one for what they are. I mean, nobody is perfect! (like me 😁)
My dad is a right wing obsessed with American politics. I don’t consider it a deal breaker because he doesn’t vote in any elections and ultimately doesnt hurt anyone. However i have lost a lot of respect for him as a man and I think he’s stupid for believing the nonsense he does.
If this was a friend I would not remain friends with that person. The company I choose to keep reflects me and I learn and listen to those people. I expect a certain level of morals and intelligence from my close friends.