You're not wrong, government distrust has been at an all time high the past few decades (though it's always been the case, has it not?).
Conspiracy theorists found a home in Social Media, to your point. Then Trump and his MAGA cult coopted the Conspiracy theorists and folded them into their ideology and here we are.
This is how we got to MAGA imo- the right was savvy enough to fold them in, double down and stoke the conspiracy theorist fires, while keeping Trump and co. on the outside of said conspiracies. This is also why MAGA isn't really conservative/Republican- It's its own (in my opinion extremely dangerous) thing.
MAGA is just Trump ideology with Conspiracies folded in to control the masses.