"You can't support abolition/universal healthcare/reparations/universal housing/etc without being able to answer every possible hypothetical question about its implementation" is, frankly, horseshit.

The Wright brothers didn't need to be able to design a 747 to build the first airplane.

You don't need to know everything about everything or be a subject matter expert in a policy to support it. Plus, true subject matter experts will tell you THEY ALSO DON'T KNOW EVERYTHING, even about policies they're experts in!
It's okay to say "this will be better than now, and once we see how it works in practice, we'll improve it again based on the data." It's okay to say that our first version doesn't have to be perfect, just the best we can do with the knowledge we have. And as we know more, we do more.

@theleftistlawyer not like the ppl supporting the status quo have answers to all the horrific problems those systems engender. They’re just inured to them.

Like, oh we should have for profit housing? But how will you solve the issue of homelessness? Oh you will just ignore it? Ok well if that’s the bar…