As Heartbleed and numerous other examples show, the corporations freeload and then barely give anything back. There should be a nuanced middle ground between charging everyone for everything and not letting corporations that collectively make hundreds of billions if not more of revenue off software get away with contributing nothing back.
You're still missing "Most directly, the thing you do is theft."
I think the past 46 years have proved, that free software works, no matter how many Bills want (or will) get rich off the industry. If there were no hobbyists either literally stealing software, or indirectly "stealing" it, because it's free, there would be no industry to profit from.