Lets take a step by step brown townysis of MLP
1.

Is this aimed at little girls or men?
2. answer: it's clearly aimed at little girls
3. If something is aimed at a specific audience you watch it on a regular basis, that makes you are either
a) Part of that audience
b) Very similar to audience
4. I'm gonna go ahead and assume that none of you are actually little girls, so that makes you very similar to little girls.
And as proven multiple times by the posts in this topic, you are acting very similar to little girls in that you whine and shout, and just generally throw a fit anytime someone mentions that they don't like something you don't like.
tl;dr: Pony lovers are little girls