Sounds like scary stuff!
I started wondering about the "point" of our existence in primary school....
I don't think that anything needs to have a point to exist. It just is.
Then again, I am not religious at all and don;t think there is some grand plan behind the existence of the universe and certainly not that something so vast was created for our convenience
If the governments of the world are farmers, they are not very good ones. They are human just like the rest of us and capable of slipping up in spectacular ways owing to the power they temporarily have.
So no....I am not inclined to take conspiracy theories very seriously....I doubt that such machinations could remain secret for long.