A compassionate view of humanity would say that humans are basically accepting. This openness can then be abused by viral misinformation. We could take the view that humans should just be self protecting and if they got duped that’s on them. But IMO that’s a depressing view of the world, and tends toward something like mutually assured social destruction in the limit. We need to protect our shared narrative.
Also personally I find the view that “democracy prevailed before, it’ll continue to prevail somehow” deeply unsatisfying. Democracy is not built into nature. It has to be proactively maintained and refreshed.