Koopa, I think you're misunderstanding a few things. Not really gonna go into detail, but here's one that stood out to me most. You said that we can't accept it when somebody doesn't like the show.
For most of us, this is dead wrong.
I could care less about people disliking the show. That's their choice (hopefully they at least gave it a shot before coming to that conclusion, but eh). What we can't stand is when someone enters the fandom saying they hate us. For absolutely no reason. Then they get all upset when we try to defend ourselves from their full on brony attack. That's what most of the fandom hates. It's also one reason - quite a big contributor, in fact - to why the fandom is so well known. Think about it this way:
>People discuss ponies in MLP topic.
>Enter hater.
>Starts hatin'.
>People get annoyed (naturally), as there was no legitimate reason for the hater to even enter the topic in the first place.
>People get defensive, or they counter-attack, which leads to more arguments, more memes, more anti-and-pro MLP pictures, and in the end, nobody is happy.
>After drawing so much attention to themselves, a direct result of these arguments, each side grows in numbers; basically, most people will choose a side after reading such an argument, provided they were previously unbiased or unknowing.
>Now that there are more haters, they - surprise! - start more arguments, and thus the vicious cycle continues.
Really, the whole "stop spreading you stuff everywhere" can be applied to other fandoms as well, it's just not as pronounced because there is less opposition.
