Tbf people have been spoonfed ideological mush via propaganda from the womb to the tomb and the stuff American three letter agencies do is so cartoonishly evil it can be kind of hard to believe, especially if bombarded with multiple atrocities at once.
Its also purposefully mixed in with fake shit about aliens, crystal healing, and associated with Icke, AJ, etc.
Not to mention the three-letter agencies being corrupt and evil is always shown as a one off thing in movies. Oh no, the CIA isn’t bad, it’s just that this one rogue CIA guy was bad and running a clandestine off the books evil thing! It’s up to the Good CIA Guy to stop it, and then everything will be fine!