The Theory of All Logically Possible Entities

The theory that all logically possible laws of physics are instantiated as universes has a further, severe problem as an explanation. It doesn't explain why the laws of physics have the form that they do. Of course, everything could pop into existence now and then popp out of existence. So should we predict that our universe too is inexplicable, or has some high but unknowable probability to be? Thus again, anthropic arguments based on all possible laws are ruled out for being bad explanations.