My honest opinion is it’s some sort of negative feedback loop ……where the body thinks the new normal or “baseline “ is poor erections , poor sleep , poor anxiety/depression , poor Anhedonia , and it doesn’t try to rectify these things as it thinks this is the new baseline .
That to me seems more feasible, as scary as the dna damage does sound .
There are after all many people on here who get ‘better ‘ over time ( I’m not saying ‘cured’ just better !) who then leave and can go on to lead fairly normal lives . Paul Innes is one I can think of , he was really bad and went on national UK tv at one stage . I hear he has done better over the years , now runs marathons etc