The vaccines just don't work and there's no denying it now.
Pfizer and BioNTech have taken huge stock price hits.
In the US, this is an election year, and Biden's ratings are awful, so republicans can win. The system can't get too illegitimate otherwise people will question more than they have been.
There are people who are fanatics about the vax, but most people who got it and are still getting sick, they aren't going to take the 5th jab. They don't want these people to think about how else they're being lied to every single day.