>>52098705People still want an innocent protagonist that isn't interested in romance. Despite what shipfags believe, nobody cares for that shit. But people still want Delicious Damsels.
However, making a new character would necessitate exploring that character's identity. Which might require them explaining why he doesn't care about the three 10/10s following him around and begging for his D. Too much effort, too much risk, when they already have the lifeless corpse that is trAsh to fall back on.