well, other systems were tried and were worse (feudalism, communism etc)
in practice capitalism with some regulations is better than known alternatives
> Contributing to open source software or commons like Wikipedia definitely is questionable
what is not questionable then?
Worse, you mistake the bounds of your personal knowledge as the borders of the world.
Even if there was no currently "known" alternative, the proper course of action is to research that and find one?
please test it properly before putting it in production, communism went poorly
> Absence of evidence isn't evidence of absence.
note that I am not arguing that better system is impossible - that would be silly
but "destroy capitalism" attempts went remarkably badly so far
The idea, you would have to produce a turn-key solution, beta-tested on "somebody else" is obvious nonsense and pure deflection.
In the given dire situation, you have to do the best you can, not wait for some imaginary perfect escape hatch to appear.