Silicon? Sure. Billion dollar fabs are huge single points of failure. It's turning into a problem too due to the war on general purpose computing. Free software doesn't matter if we can't run it. Linux distro? Not really. It's only a matter of how much effort I want to put into things. I can make my own distro, I can't make my own trillion dollar fab.
Anyway, what even is this argument? Can't control everything, so it doesn't matter? Don't even bother trying? Just give up? Just accept your lot in life as a serf in Apple's digital fiefdom? I'm pessimistic about the future but even I haven't completely succumbed to such total nihilism yet.