I think we are discussing the wrong problem here. I have no solution to offer, but I think the problem is not so much generated content, but the surroundings in which it can thrive and become the content you see everywhere.

If we hadn't removed the gatekeepers everywhere (and I know there are problems with them, too), then all that technology would not be able to do much harm.

It might also have to do with incentives. The incentives in our economy are not to help and advance society, the invisible hand nonwithstanding.