Black holes in space are intelligent civilizations who couldn't control CERN-type machines???

Yeah, thats the kind of deep thinking i do too.

Who knows, maybe ascension of humanity is destined to happen in just that way. Once we learned how to create such "god like" technology, it became time to ascend into "Another dimension" through the one thing we couldn't and never would understand. The black hole.

It would seem like a sure way for EVERY PERSON to go all at once.

Cool idea, but not likely.

That doesn't mean everything is consistent with observation though. All observed black hole candidates are either of stellar mass, or supermassive objects at galactic centres. No low-mass black hole has ever been detected - but then again, they'd be substantially harder to spot, since it's their gravitational effect on their neighbours we detect.