Why do we need philanthropy? Can we make it obsolete?

This wasn’t my initial intention, but this post ended up being a lot about the RadicalxChange community. I’d be curious to get your feedback on it! Notably:
a) Do you agree that this is the unifying theme of RxC? Did I leave out anything? Did I include something that didn’t belong?
b) Do you think RadicalxChange should use this angle more in its branding?

Check out the post here: https://forum.effectivealtruism.org/posts/j63K34P9hermM4bfN/why-do-we-need-philanthropy-can-we-make-it-obsolete