I, weakly, believe capitalism for all its ills is still the best way to run our economies. With serious regulations and a social safety net to make life better for the have-nots. This arguably works “okay” in most places.
Mostly I have yet to see evidence or compelling arguments that other schemes can work well in our time. Go back 500 years, sure, pre-industrial economies worked fine without capitalism. Go forward 500 years, Star Trek, maybe? But not right now.