What's with all of the biphobia

What's with all of the biphobia
 I'm so over dealing with all of the bi-phobia that I run into on other LG....b...t sites and communities. They always gaywash the bi and trans people by always using 'gay' as short for all queers. Then when a bi or trans personspeaks up they get nasty about it and are always yelling bi people that we are just "affraid to admit that we are gay" or that we should "pick a team" or that we are just closet case. Sometimes I hate my own generation. My music students and the sons friends and that generation  never even bats an eye or says anything like that. Some days it just gets right up my nose.
The people running one online community like to occasionally edit my responses when I defend bi people. I've never used profanity or insult and never been in a personal conflict with anyone on their fora but still they will edit anything that I say that defends bi people and holds other members of the queer community for saying inappropriate things.
Enough.