Living in a Low Density Black Hole, Non-Expanding Universe - Perhaps a Reflecting Universe

What is the average density of a black hole, assuming its spin can prevent it from collapsing into a singularity? For stellar black holes, the average density is incredibly dense and has over a trillion G force and tidal force that will rip almost anything apart at the black hole boundary. Surprisingly, the average density decreases dramatically for massive black holes. A black hole of 387 million solar masses would have the average density of water and would be comparable to a giant water balloon extending from the sun almost to Jupiter. A black hole of 11 billion solar masses would have the average density of air and would be analogous to a giant air filled party balloon extending 2.5 times farther out than Pluto. The average mass density in space itself, however small, eventually can become a low density black hole. If the average density of the universe matches the critical density of just 5.67 hydrogen atoms per cubic meter, it would form a Schwarzschild low density black hole of approximately 13.8 billion light years, matching the big bang model of the universe. A black hole can use rotation and/or charge to keep from collapsing. The G and tidal forces become negligible for large low density black holes. Thus one can be living in a large low density black hole and not know it. Further analysis about the critical density rules out an expanding universe and disproves the big bang theory. Higher densities could produce a much smaller reflecting universe.