Unfortunately, I suspect that any starship that could bring with it all of those services would also bring with it the economic and political strife of Earth. The are lots of examples of democratic states turning into oligarchies or worse in recent history so that can't work in it's current form at least.

The closest analogue in the real world to the ideal that you describe is, I think, Cuba. It does guarantee food and housing, and it does have a remarkably advanced healthcare system plus what is reportedly a united community. Perhaps most interesting of all, it's politically isolated like a starship would have to be by its nature. Even then, one would have to be either pretty brave or desperate to go along on the journey, as modern Cuba has only been around for half a century and that's at the absolute minimum of an intergalactic starship's practical mission duration.