Technically the deep state is the apparatus of the cabal/illuminati types. It's kind of the level behind black programs that suck down many billions in the budget that you never get to know about. Its tech is real, bits of it keep leaking out here and there to the discomfort of the few but not to the notice of most, and you should watch the space, because it's probably going to keep up.
The term "conspiracy theorist" for the record was specifically devised by the CIA to discredit anyone who got too close to the truth of the Kennedy assassination, and that one's so out in the open for anyone willing to look it's almost not worth bothering with. Watch Oliver Stone or read Jim Marrs - the reason Oswald told you he was a patsy before he was shot was he finally realized he was, the secret service was ordered out of the car by their chief immediately as the car mad the final turn, you can actually see it on film, Kennedy's head went back and to the left instead of forward, the "magic bullet" was transparently impossible, Gerald Ford absolutely did alter the hospital records in the Warren report, you can watch Johnson' mistress telling you he predicted the event the evening before, and a thousand other proofs the official story is bull.
There is a reason people are slowly starting to wake up, and there's a reason it scares the people behind the curtains. Be willing to keep your mind at least open enough that evidence can still make it in.