Is there anything that can be done to hold Reddit accountable or make people aware of they way they are censoring speech?
The best thing you can do to hold reddit to account would be to become an active lemmy user. You could make a reddit sucks sublemmy and moderate that if you are angry enough to take action.
Maybe whatever civilization replaces the US will learn from our mistakes and never, under any circumstances allow a single person to have the ability to set any kind of policy. Hopefully they also don't leave gigantic weapons that can destroy the country all over the legal tapestry and use the honor system to control their usage.