Capitalist class, but yeah I should probably clarify that it isn’t the entirety of them. In this instance, the conspiracy theory is pushed by the more reactionary elements of that class and their media, like InfoWars or the Qboomer Karen nominees.
See again, I'm not entirely sure who you're referring to here. Class, in a Marxist sense, is about social status, prestige, wealth, property, and influence in government. You can't really make an argument for why some QAnon boomer in a shack in Missouri is somehow in the same "capitalist class" as, say, Tucker Carlson. Conspiracy theories and religious beliefs are
not manufactured by the elite; they come from the lower classes as a way for them to cope with their position in life ("the meek shall inherit the Earth," etc). This is because the lower classes are generally dumb, ignorant, and scared of confronting the real world-- because the real world has been somewhat cruel to them. And again, perhaps the "capitalist class" or "ruling class" helps to spread these kinds of beliefs as a distraction (or "opiate"), but it's not like they're forcing these beliefs on the people below them. These delusions are fabricated and adopted entirely organically by poor, stupid people.