YC is unique in the list that you give insofar as they're likely to not benefit from a repeal of NN, whereas the consolidation of money and influence in the big four has made the repeal of NN very attractive to them, and they're not inclined to fight it. Wall street, private sector don't care, they can reason about the repeal of NN and migrate to where the lopsided gains will accrete as a result. The money and market share at stake for these big players creates a suicide pact that pits them against the sentiment of their users and the instincts about freedom of the Internet that brought them into tech in the first place.

Direct action is required. Go vote. Route around broken Internet. Hit them where it hurts them.