Matter bends spacetime. Spacetime tells matter how to move.
Using this logic, you can imagine that above a certain threshold, this can become a feedback loop. These locations are black holes, where enough matter located in a small enough volume of spacetime can create enough distortion to further force more matter into the same volume of spacetime.
Holy moly, I’m not big on politics but I had to look up the clip of this and in addition to the ridiculousness of saying this, he actually talks like how people meme his speech patterns. I thought it was embellishments and exaggerations.