Add to this many people now going to pains to do open source for closed (and sometimes abusive) platforms, which has network effects, bringing and cementing more techies to closed, and leaving them oblivious to why and how we have the open things we still do.
This also has network effects in removing some hard-earned pressure on hardware developers to cooperate with open platform efforts.
There's an expression about wealth, which I'll rephrase something like: "The first generation earns it, the second generation preserves it, the third generation fritters it away."
There's also an expression: "The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants."
We could avoid a lot of needless abuse in the next several years (and questionable tree-watering), by more of us actively trying to preserve and even improve libre/open platforms now.