Your friends were your church, schoolmates, etc. You can't pick "People who are X, Y, Z and support only A and B" because the pool of potential friend candidates just wasn't large enough.

On Twitter, I can choose to only be friends with conservative libertarian furries who believe in crypto. That doesn't scale to real life.

> Your friends were your church, schoolmates, etc. You can't pick "People who are X, Y, Z and support only A and B" because the pool of potential friend candidates just wasn't large enough.

It seemed to work well enough for me. One thing worth noting is that people who live in the same geographical location already tend to be somewhat like-minded, for obvious reasons. But you seem to be talking about a "perfect match", which is an impossible, unnecessary standard.

> On Twitter, I can choose to only be friends with conservative libertarian furries who believe in crypto.

You're not friends with people on Twitter. If you think you are, try leaving Twitter, and see how many of your "friends" still talk to you afterward.