Sure, a conspiracy theory being popular could mean that there's some truth to it, but ONLY if it's harmless to the world's power structure, else it would never have been allowed to reach that level of popularity.
The most successful psyops in the history are those which have conditioned almost everyone to reject any possibility of certain conspiracies no matter how much supporting evidence there may be.
Sure, a conspiracy theory being popular could mean that there's some truth to it, but ONLY if it's harmless to the world's power structure, else it would never have been allowed to reach that level of popularity.
The most successful psyops in the history are those which have conditioned almost everyone to reject any possibility of certain conspiracies no matter how much supporting evidence there may be.