Stockholders of Google, Apple, Microsoft, etc. etc. can make money from things they did not build themseleves (including individuals such as Brin, Cook, Balmer etc. etc.).

While one might argue, "yes but those stockholders invested capital in those companies," one might reasonably counter that Google, Apple, Microsoft, etc. etc. invested capital in the research to discover those patentable ideas.

Don't misunderstand me, I see some ethical merits in a Marxist economic approach.

However, "Now we see the violence inherent in the system," is hardly a convincing argument.