Socialism can only work as long people doesn't abuse it, which was the case back in the days of National Socialism where illegals weren't allowed welfare. National capitalism would justify more illegals flooding in, most people would rather kick them out then scale down the level of socialism or welfare to reasonable levels. But most importantly stop people from abusing it without having to add more government surveillance.

Shared systems like public transit is nothing wrong in urban areas like a town, a village, community or even a city. The key is to be able to offer such systems without simultaneously installing a mass surveillance system, but also offering transparency and properly deal with corruption that tends to find it's way into all of these systems.