La Barata said:
Yes.
Yes, you are.
You are the only person with a sexual identity differing from 100% heterosexual to ever pick up a controller or to find this specific website.
In fact, you might be the only person to ever have a differing sexual identity EVER.
You're just.
That.
Special.
But no. No, you aren't.
I've been around the metaphorical gaming block a time or two. LGBT+ presence isn't as prevalent as you seem to think it is. Just because something must be a statistical certainty doesn't mean it has visibility or prevalence.
We highly value our safe spaces, and most of us don't go around exposing ourselves to hate speech and other forms of attacks unless the space seems safe enough. So in many places, even if we do exist, we keep quiet.
It has nothing to do with being special or thinking too highly of yourself, it's about trying to reach out to people like you who otherwise keep a low profile and don't shout their gender or sexual identities to the four winds.