Are there micro black holes in the centre of the sun?
First; the sun is of insufficient mass to create a black hole at least by today’s Theories. Second, I’m not any better at theoretical physics than you (probably a lot worse); but the black hole forms after latter heavier element burning stages that are very hot and short. After this there is insufficient fuel to sustain the star and the main force becomes gravity, as gravity is relatively weak compared to the other forces it’s easy to be overcome in large stellar systems. {Or so I understand.} The actual matter at the centre of the sun is in an unknown state, but a black hole of the suns mass would be somewhere about a mile so the density of material is hugely more concentrated in a black hole than at the sun’s core Third; if the Large Hadron Collider has a possibility of creating micro black holes, which maybe short lived according to Stephen Hawking. It’s almost certain that these would be created in the heart of the sun with all the matter, radiation and energy there.