Ironically enough, brony-haters view MLP in a similar way that Dashie see's most of animals. Thinking that it's so cute that it cannot be cool.
Typically, one might expect that prejudice based on cuteness would be against the uncute
. Sometimes for some, though, the prejudice might point in the other direction.
And this isn't necessarily Positive Discrimination
either, though that is often part of it. It is often out of an association of cuteness with weakness, combined with contempt for the weak. Of course, both the former and the latter are questionable for their own reasons, and works with characters who are prejudiced against cute may call attention to such reasons.