Herbert Glazier wrote:
That they can only get more dense,but their size stays the same.More
dense means greater force of gravity,and that means greater accretion
disk. I must add BHs came first and control galaxies core.One head on
look at a spiral galaxy shows this reality.Bert




That is the definition of black holes.
They are ALL singularities, of varying immense mass.

A single point is always a single point. The difference in mass of that
point will have differing effects on the mass and space surrounding it.