True that nothing is 100% safe. But that would require a ton of work and processing power to crack each message. It would at least stop an automated bot from detecting a certain word or phrase and flagging you for further surveillance.
He's a low information voter who voted on emotion for Trump and now votes on emotion against him just based on a couple stories he heard that aren't even true.
This is a really good point. That's basically what his friend did. That said I think there are far more people that have been redpilled since 2016 rather than bluepilled.
I've seen the media pushing the narrative that Trump supporters are regretting their vote in 2016 and are switching parties now. I had a friend tell me he knows a guy that voted Trump in 2016 but is now going to Biden rallies. I don't know how true it is though. It's his friend.
More people joined Gab and there's reasonable people there now. The crazies are still around but they tend to get drowned out.