I would find that a little more convincing if the people complaining about being lied to about the efficacy of masks were also the people who were afterwards arguing most strongly in favour of masks.
Strangely, it appears to be the opposite.
That doesn't seem that strange. If they can't trust an institution, people stop trusting lots of things.
That doesn't seem that strange. If they can't trust an institution, people stop trusting lots of things.