When straight men say that they are feeling uncomfortable in the presence of gay men (because they assume the gays will be ogling them or chatting them up, even if the gays don't do anything remotely like that), the only thing I can think is this:
The straight guys are basically assuming that gays will behave in exactly the same creepy and unacceptable ways in which they themselves tend to behave towards women (or people they think are women).
But in my experience, the gays usually do not. So, sorry, straight guys, you still have the monopoly on creepiness 