In my experience even the most progressive people suddenly turn into some kinda weird traditionalists when it comes to child support.
Absolutely. It’s because liberal feminism, like all other forms of liberal anti-oppression, can only conceive of “here is a type of person we should be nice to”. There’s nothing systemic or dialectic in any way. So because the proximate target here is male, there’s no self-reflection or external shaming when someone is a regular-ass reactionary. “maybe if they didn’t want to have most of the remaining value of their labor extracted for 18 years non-consensually they shouldn’t have slept around”