That assumes that people exist within a shared reality influenced by facts, but people aren't connected to reality and aren't influenced by facts. We can see that with vaccinations.
The system that divorces people from reality is social media, so as long as social media is pumping un-reality into people's lives, I think you're being rather optimistic. What's happening right now is directly empowering social media oligarchs, so they have absolutely no reason to stop. The foundation of their power is un-reality.
This is what I was trying to say but wasn't sure how to say it. You can't deprogram people while they are drinking from the firehose and they have no incentive to disconnect. You would like family and friends, children cutting ties would be thing to force people to reevaluate but they just keep going as normal.
One thing to remember is that the right-wing media has been pushing absurd shibboleths for decades as well as normalizing treating other people horribly on slanderous grounds. That makes it really hard for people to come back because they have an all-you-can-eat buffet of crow. Repairing family relationships or friendships is never easy, and might not be possible after calling someone a “groomer”, “baby killer”, or “terrorist” and in so many cases it’s going to be incredibly uncomfortable to admit having done things like vote for Trump because of an urban legend or Facebook meme you could easily have checked.
It’s much easier to stay inside your bubble, where everyone else will agree with you that your kids and former friends just hate America, and avoid dwelling on it too much. If you’ve ever known someone who was in an extreme religion or abusive relationship, it’s pretty similar and the most reliable way to break the spell is some kind of outside shock which can’t be ignored. Trump might get that with the recession he’s working on but it’ll take time for people to accept that it’s real and was totally avoidable.
I just want to say that if you (the person reading) are one of those people and want to come back , we'll still be here and we'll welcome you. You don't have to agree with us on everything (nobody ever has.) We just have to agree on a few basic principles like the value of the rule of law, the Constitution, and the fact that the people currently in charge do not respect those things.