Eq as a character never super interested me? I'm very particular with my tastes in big buff men and Equius gives off that creepy, domineering energy that turns me off 90% of the time. Except when he gets horny about 'lowbloods' telling him what to do, going full mast as Karkat rants at him, telling him to stop being a creep until he prostrates himself in front of his mutant leader and begs for permission to relieve himself-- splattering a particular corner of the meteor with 3 years worth of midblood genetic material from his needy equine cock while thinking about the lowbloods of the meteor talking down to him.

then he's got a nice appeal. But for the most part it's just people trying to take any excuse to pigeonhole a character into the 'alpha male' stereotype and give him a cock that goes down to his ankles.