Not buying the assassination theories in the JFK movie does not mean one rules out the deep state. I think Oliver Stone even acknowledges that. He said it was an “alternative interpretation” and he took what a number of JFK conspiracy theorists said.
Heck, JFK also has the Mafia and some gay social ring involved in the JFK assassination. Pretty far-fetched to think all of that happened.
I’m simply talking about those who poo-pooed the idea of a shadow government. The “deep state” is a shadow government.