Yeah, except socialism actually worked just fine in Sweden until they started with the mass importations. People can behave like an ant colony. Not that they should (because someone always ends up being corrupted by power and taking rights away from others), but that they are capable of it. A homogeneous society with the same diets, similar routines, and generally healthy disposition can live in a "socialist" state because universal health care and other social services will balance out. But yeah, the moment you start tossing a bunch of people that don't agree/contribute, it fails.
But we don't talk about that because it's unrealistic, A, and B, is something that could never work in the USA because our system is way superior, regardless.