So I read your link, and it sounds like he wants to be included in LGBTQ? Ask him which letter he wants, and welcome him on in. But do remind him that he can't have the L unless he also embraces the T.
Please tell me that’s a joke. If it’s not, this dude’s toxic af. Make internet friends if you live in such a hellhole you think this dude’s your only option. You deserve better.