I can at least see how most mc's are popular
Clannadman Fixes your life problems in one story arc
Touma is invincible or whatever and can take the red thread of fate and cut that shit or something
Blond MC with from haganai is inexplicably popular, but only with a few girls
Toradora Guy is at least a good person at heart or whatever
MC form Dokkoida is a big brother to one, a mentor to one, and a potential fucktoy to one, and the other 2 don't give a single fuck about him
And then we have this derpface mc from School Days who, in ep. 1, in the first 5 minutes, is approached by a popular girl, and told that he's popular among the girls in this school
Man whatever I'm sure it'll be worth it according to everyone else