Hard to fathom. But remember the vaccine that would rewrite VMAT-2 ( known as the God gene) a gene that gives you a predilection to a belief in a higher power?
If they can undo your belief ungodly with an injection, they could give you beliefs as well.
I still debate with people if it’s that, something in the water in blue cities, or 5g frequencies of parasites.
From observation, It is more likely to be a combination of all of them. Our enemies avoid creating single pattern plans.