I actually think MLP:FiM is quite well-produced compared to other children's shows today, but I'm not really into MLP as a whole. I respect the show's production value but the topic just doesn't interest me. I have nothing against bronies and other people who watch MLP despite being outside of the target demographic. One of my best friends is my age and she is a huge fan of MLP. (For her birthday I got her a plushie of Pinkie Pie, her favorite character. Cue much squeeing and bear-hugging.) She's a normal person, not a creep or a freak, and I must admit that this hate on bronies as a whole for the actions of a certain subset really bothers me. It's as if they are held to a higher standard than all other fandoms simply because of the topic of the show.
Anyway, regarding Breitbart, he's just mad because he's not manly enough to watch MLP without feeling insecure. Real men aren't afraid of shows made for little girls.