They are leaders of their community, trend setters, rule-breakers.
They are pioneers, on quests. Independent, and assertive. A brotherhood. A commune of warriors.
Did not Rarity kick the face of a Lion? And fluttershy, timid of the bunch, is so powerful that she commands both pony and Beast with but her eye. Does fluttershy not turn into a Werebeast of Olde?
What is BigMac but an emasculated male, a Negro, brawn and a big member, but but a slave to his masculine sister AppleJack.
And what is Rarity? Is not glamour a property of the males? Does not the peacock have the brightest colors? Does not a lion of the longest most beautiful mane? Rarity, bestowed such power as to create, manifest reality with but a thought - creative masculinity.
And what is Drama, but an attribute belonging to the male? Is not a true female but quiet, belonging in the kitchen? We see how Rarity covets and lusts after her object of affection, changing herself, bettering herself to please the mate she lusts for. Women do not do this, women are not a "becoming. Women are simply “being”. Women do not create false pretenses to secure a mate, they simply move on. It’s their way or the highway. Women are all they are, all they ever will be. Rarity is more. Rarity is the man of the family.
Women are not leaders of society. Women do not learn life lessons. They do not make friendships. Women do not exercize morals, or active kinship. Women are all they will ever be, nothing more. There is not a becoming. In soap operas, women are dependent among the man. In soap opera’s, women fight amongst themselves. In soap-opera’s, women are anti-stoic, they have no pity for the weak. Women, in soap-opera’s, have herd mentality, and rarely think for themselves. Yet, unlike one of these moderns, Twilight Sparkle takes an interest in her lost friends, friends she abandoned, demonstrating critical thought. This makes her bringer of Light, masculinity, masculine empathy. A woman would never take an interest in those she has betrayed. Twilight demonstrates masculine empathy, masculine behavoir, trying to mend that which she has broken.
Trixie is competitive and boastful, striving, adept, becoming, rule-breaking, masculine.
My little pony is popular is popular among males because it embodies an ancient masculinity. Yes, even in the real, to embrace my little pony is to reject social norms. Glamour, and honor. Masculinity. My little pony embodies ancient greek ideals, yes Equestria is gaurded by the mightiest Cerberus. My little ponies must fight for higher ideals, even in the face of death. My little ponies must build and mend broken societies. A cutie mark embodies a male’s highest honor, and passion, his pride, and self-worth.
Yes, even the Sirens, must feed and seduce. A siren is the embodiment of masculinity, if Celestia is God then so isn’t Adagio Lucifer in-carnate himself.