@j It's made of normal matter, compressed to an infinitely small size. That doesn't make it "exotic matter". lol.
Exotic matter refers to things like tachyons and other hypothetical particles that we have no proof to their existence, not even mathematical hints of them existing, that people speculate on because maybe they could make wormholes or time travel work.
Black holes are literally made from collapsing stars. There's nothing special about the matter they're made from. It's the same elements, the same protons, neutrons and electrons you find in a star. Why are we debating this like it's some big unknown?