I am fairly against IP laws as well without being capitalist. My point was that the argument in the quote, "If you accept that axiomatically, then by the same logic when you withhold access to lifesaving medication that's murder. From a moral standpoint it's an imperative to enact theft to prevent murder.” was not a capitalist argument itself.
Forcing people to give up property that was legally acquired, to avoid a worse evil, seems more socialist than anything else to me
