Al, Joseph,
You do know what the "singularity" is, do you not?
When we use our theories to run the universe backward we come to a period just a small split second
after the "beginning" where our theories break down. They cannot show us what the universe was or what it looked like from that point back.
We cannot say, and so you cannot say, what the attributes of this period were (called the singularity only because it needs some name so we can have conversations about it), what rules or laws applied or did not apply or what conditions, energies, temperatures, or anything else about this "thing" were. It is a period of total ignorance for us.
To keep so much motion so densely compressed and confined in so little volume or rather an absence of volume would imply application of a terrible force. Here is the problem. The laws of physics as they stand do not allow anything like that.
Since the known "laws of physics" do not apply neither do your conclusions.
Thus, if the BBT is based on a ONE singular, indivisible, irreducible entity, with nothing else yet existing at the initiation point - it cannot expand or go BOOM! No action can occur here.
The Big Bang Theory is not based on the singularity but on the periods of our knowledge well after the singularity period. Your assumption is faulty and thus so is your conclusion.
Edited by AZPaul3, : In bold changed "before" to "after". Thanks for the correction, Moose.