I think you have completely misread the situation. The "fakification" of social media is already happening. Much if not most engagement is already driven by bots or by fabricated "influencers" and more people are using these platforms more often, not less.
I think the critical threshold for most people will be when bots start impersonating people they know in person. At that point, the value of the social networks will evaporate.
I don't share your optimism. Significant portions of the population believe the Earth is 6000 years old or is flat. Not sure why their critical thinking skills would suddenly improve at an opportune time.