I do think we are bouncing similar ideas back and forth, but the tangle of concepts we have to use are more the source of the confusion.

" Sure, you can describe it as infinite in the colloquial sense of the word, but from a geometric and mathematical standpoint, it’s a singular point like entity."

As I said, IF you try imagining space in isolation, without matter, motion, time, etc, it would be nothing, as in a temperature of absolute zero, so no motion, ie. point like. As well as unbound, because it has nothing to define it, therefore infinite.

Yes, gravity, mass, matter is that collapsing inward, but the light/energy does radiate out. That's why we can see galaxies as far as we can detect them, because they radiate their light toward infinity.