It seems to me that that view is slowly shifting. Sure, there are some people (mostly gay guys in my experience, but that could just be my area) who try to distance themselves from the "t" bit of lgbt, but when the advocate posted a poll asking if the gay community would accept an ENDA that excluded gender identity protection the response was an overwhelming NO. (around 95% voted no if I remember correctly, but it may have been higher)
Unfortunately, the major orgs like HRC frequently don't get the message, and most of the newest generation of activists are in our teens and early twenties just now. We don't yet have the political and financial clout to go up against the current paradigm, but we are yelling for all we're worth.