100%. This actually works. Most boomers are not technologically late enough to track subscriptions and such.
There was a YouTube video not a documentary (similar to The Brainwashing of My Dad) where their father went down the rabbithole, but they started subscribing them to better news sources, and eventually to left-leaning news sources, and he did a whole 180°.
Fear is like a drug. It's addictive, and rightwing media sources have cracked the formula on how to get people addicted to it, and it can happen to ANYONE. The uneducated to the well-educated. The only thing that makes you immune to it is critical thinking and empathy - which is why I feel that their next war is on education and masculinity. They are literally trying to perfect the addiction so you can never leave it.
This is part of the reason why education is so insanely important.