Are Black Hole Collisions a Fatal Flaw?

New theory about natural selection assumes kind of aboucy universe. But we are not seeing that the universe is balnsy. We see black holes gobbling up each other, like forming a mega black hole as they combine. That probably happened even for things like the black hole of the centre of our galaxy. Our galaxy is likely the product of the collision of several galaxies, each of which had their own black hole. So if each one had a universe inside of it, what happens when they emerge? Do the universes collide? Do you get some other crazy thing happening? They would have different laws of physics inside each black hole,. Have some sort of like house senate reconciliation committee were you