Something like reddit2 should be run by a minimalist apolitical company.
They should work on building some kind of democracy in each sub-reddit, based on some factors (where "participation quality" is one important factor). If the users are unhappy, they should be able to call for an election, etc.
The reddit2 company should focus primarily on keeping the platform alive and on fighting bots. And on tuning the scoring model.
They should be financed in some way that doesn't depend on the content. Be it individual contributments, random, anomymized advertisments etc.
The company should try to hire apolitical engineers and managers. People who just care about solving an engineering problem.