Why are biuals treated like second-cl citizens in the LGBT community?

I mean, I understand ignorant people who believe that any deviation from heterouality is abnormal and/or punishable. Fine. They can have their opinion - but the people who rant at the bigots in LGBT shouldn't be able to turn around and mock or belittle one of their own. It's called , gay, and . If they gay guys made fun of the s or said they were just confused, would anyone put up with it? If the s called the people posers or losers or said they were going through phase, they would be reported. I just don't understand why people who constantly face prejudice and discrimination could turn it on someone for the exact same reason - that they don't understand it. Why is this permitted?