Sure, and I'm aware of the non-profit initiatives. I don't think many people have considered producing actual software under a not-for-profit (except for Khan Academy?), probably because it's insanely expensive. Would YCombinator help facilitate funding a fully open Facebook or Twitter clone, for instance? It sounds outlandish to consider, but it seems equally outlandish to consider the 2020 election happening over essentially the same social stack & people will just be okay with that.

(Obviously, a clone itself wouldn't suffice, you'd need to start with federated identity, and....)