Great, great, now what's a black hole positron, or a black hole muon or black hole tau (and their respective antis)? If these other particles aren't qualitativ

Great, great, now what's a black hole positron, or a black hole muon or black hole tau (and their respective antis)? If these other particles aren't qualitatively like electron black holes, why not? Assume electrons are black hole electrons. Why are there so many more of them than positrons? Assume all charged leptons are black holes. Why are the higher-mass tau and muon so much less stable than the electron, even though (anti-)muons are stable enough that muonium can participate in chemical reactions (there's useful real-world applications for that since the muon's magnetic properties distinguish from atomic hydrogen)? Why is muonium still perfectly fine linear theory (in bound-state QED theory (BSQED) they're just two pointlike leptons) while black hole electron + black hole antimuon almost certainly isn't? (Similar questions can be asked about positronium if only the first generation of charged leptons can be tiny black holes). Extra credit: why aren't neutral leptons also black holes?