The Community (and I use that in the broadest sense) is not so big and powerful that it can afford to turn people away. People should realize that but on the other hand bisexuals get some really wicked flack that we are not gay enough or that when times get tight we can fade back into mainstream heteroland. People should know better and realize that progress towards equality needs (NO, Requires!) all of us working together. It is stupid NOT to do that, but it's almost like some inside The Community want all the glory and all the benefits for themselves. They are unwilling to share. I would not be surprised if a similar thought process has been levied against straight crossdressers. And, I suspect that it is an even greater leap of Faith as they just KNOW that you're really gay and in denial. Probably the best advice is staunchly maintain your identity. Don't shout it from the rafters, but be resolute.
Society at large attempts to marginalize ALL of us because we sleep with and have relationships with people of the same sex OR because we choose to present opposite to our physical being OR we don't determine our preferred partners by gender OR we don't think of ourselves as sexual beings OR there is a mismatch between our sensibilities and our physical being. All of these things SHOULD be reasons to unite us, but instead many people consider them as reasons to stay separate and apart. This will NOT do.
So, if we don't see the behavior that should exist, it is up to us to model it. It is up to us to be inclusive. It is up to us to recgnize our differences, accept them and be drawn together by them. Anything less will be viewed as tacit approval of the behavior that we don't want.