Not sure your claim is really true. I find it hard to believe people are cutting off family members so frivolously when you lose a lot of built in benefits to r

Not sure your claim is really true. I find it hard to believe people are cutting off family members so frivolously when you lose a lot of built in benefits to remaining in that system. Really what seems to be happening to me is the gradual extreme politicization of individuals which over time erodes relationships. An example is an Uncle going from a general “respect everyone” position to advocating in favour of certain groups losing voting rights. Then his family members who may be part of those groups no longer wanting to spend time with him. This is very different from cults, and narcissistic abuse as well, which tends to rely heavily on intentionality (eg a boyfriend isolating you from all your friends so it’s easier to manipulate you). That intentionality is missing when it comes to families breaking apart due to drifting beliefs. Again if we assume their beliefs are the only reason and it’s not stacked on top of others.