I don’t reject relationships with other people, but I think they should be between independent individuals who associate with each other only because they both want to. (Violating this principle is sometimes necessary but always undesirable.) You appear to think otherwise, and I suppose that’s a fundamental value difference that can’t be resolved through debate

I also believe in autonomy, but everyone has relationships with people they did not choose to associate with due entirely to unavoidable circumstance. This doesn’t just apply to family, but to everyone on earth to varying degrees. You are just as dependent on community as you are dependent on nature, a complex web of relationships of which you are a small part. Refusing to acknowledge that these relationships exist because you did not choose to enter them is childish, and it enables you to behave selfishly because you do not take responsibility for your externalities. This is the same pitfall that capitalists dive into to justify pollution and all manner of horrible things.