If you believe in black holes and big bangs you will believe anything. But you won't believe in another cosmology until you disbelieve anything approaching real science has been done on the universe.
You have no proof of black holes, you have never seen one. You were told that some calculations based on a model prove it, and have seen artists renderings, so you believe.
I copied from another comment of mine the following, which explains things that these astrophysicist still can't with their models. Simpler too. You should know that all the standard model does is explain. You could use the same maths and readings that they do to surmise another conclusion, maybe you will try yourself one day.
My cosmology explains "dark matter" and the appearance of an expanding universe, in very simple terms. The missing energy source is gain from feedback. Infinite Expansion is a mirage of light convolution until it's noise, and noise points in every direction; that also explains background radiation, it's the noise floor (ie. it's not the actual background farthest reaches, the noise is everywhere near and far).
Occam's Razors says your cosmology is wrong. It's too convoluted, it has to explain the craziest singularities which are not observable, yet can't explain real observations like missing energy and background radiation. No math changes these facts.