Because outside of winning the lottery it isn't 100% luck that results in haves vs have-nots. There is a degree of luck involved, but there is also preparation

Because outside of winning the lottery it isn't 100% luck that results in haves vs have-nots. There is a degree of luck involved, but there is also preparation and opportunism (aka making your own luck). True universal basic income completely ignores this aspect, as does absolutist critiques of the rentier system we have today. Is it fucked up that a line arbitrarily drawn in the sand resulted in the division into piss-poor and uber-wealthy? Yes, but that's a ridiculous over simplification and it's not obvious that the solution is to socialize the distribution of wealth. That is communism by another name and I don't recall that working out very well for anybody in the 20th century.