In case you don't realize it, your behavior in this thread is patronizing (telling people how they should behave), degrading (not directly talking to the commenter), and from a clear place of closed-mindedness (writing as if teaching truths to an AI, not discussing).

Your lack of empathy makes me assume you haven't been through similar experiences as the commenter you're "replying", either because you're not visibly far off "normal", or lucky enough to have grown up in an environment which was supportive of you.

Any case, the earlier commenter is not assuming cis people are terrible and transphobic and whatever. It is a matter of trust and risk. You can generally trust other LGBT people to be accepting since they've been through the same problems as you, and of course, because they share the same differences.

So it makes sense to group together, it's safer in groups, and sometimes mentally healthier than falling in to a pit of depression feeling forced to behave or a appear a different way to how you want to.

You'll be making constant calculations on whether it's safe to show public displays of affection with your partner, or simply appear an act like you want to. The fears are exaggerated of course (we are all creatures of caution), but not unfounded, depending on where you live.

So yes, short-term, it's nice to escape to a place where you don't have to do that. Long-term, it's healthier to not autosegregate, both for the queer and non-queer person. It helps normalise things. But I won't put that on every queer person, to each their own.