Whether or not that works is a matter of luck. Part of that luck is the recognition that the people close are unsupportive and knowledge that there are supportive people.
If someone has had the bad luck of growing up surrounded by unsupportive people, the recognition and knowledge don't occur naturally.
The problem of long term socialization with assholes is that a person tends to be socialized to being an asshole. That facilitates new friendships with new assholes more than it facilitates new friendships with non-assholes. It facilitates socializing in asshole rich bubbles...etc.
If someone has had the bad luck of growing up surrounded by unsupportive people, the recognition and knowledge don't occur naturally.
The problem of long term socialization with assholes is that a person tends to be socialized to being an asshole. That facilitates new friendships with new assholes more than it facilitates new friendships with non-assholes. It facilitates socializing in asshole rich bubbles...etc.