Communism would force people to release their code as open source.
Free Market Capitalism let's them choose whether or not they want to keep it proprietary or release it as open source.
Forced-collectivism vs. Individual Free Agency.
That's what all politics boil down to.
Communism is evil because it robs everyone of freedom. It is radical extremist forced collectivism. Communism is an extremely vile and evil ideology.
Unalienable rights and individual free agency are the true liberators.
