I know this is going to sound brutally rude as text often comes across much harsher than is meant to, at least in my eyes, but I think you horribly misused that italics as that first sentence is highly incorrect. You are, in fact, effectively shutting down most LGBT content. Think about it for a moment; what is the one aspect of being LGBT that is depicted in media? Sexual interest (though I realize it is different in most people's minds, in media it is the intimacy and struggle to be accepted in a romantic way that is often depicted for LGBT people, as romance has always been a main draw-in in all forms of literature and media). Which means, most of the games are going to have adult content in it and you literally just stated "tags indicating adult content have automatically been marked for filtering". So maybe don't place emphasis on 'anything' in your first sentence. I believe what you mean to say is you are not intentionally blocking queer content, which is completely different than saying you are not blocking' any'.
And off subject, but I want more people to see this point I have been making as I feel it is a valid argument and have said before in other places, this whole thing in general is hypocritical (not directed at you personally, but those pressuring you such as card companies and CS and others). I'm in my forties. I had to learn about the same plays by Shakespeare for like 8+ years of my academic life growing up. Schools praise that guy for his literary prowess. All of his stories cover every theme of adult and NSFW. Juliet was 13 and made love to a guy at least 18 (though in those times that was normal, a game about it now would be banned), Hamlet had incest, multiple stories had rape, and almost all of them involved murder. Did that make him promoting those acts? If so, then schools shouldn't be teaching about him as they are promoting them. Movies like Kill Bill have mass murder and rape, but is anyone saying Tarantino is promoting it or has intent to do such acts? No. So, people need to stop targeting games in general.
That being said, here's hoping you decide to raise a middle finger to credit card companies and make your own currency system they cannot deny, or maybe even go crypto. I mean, if you look into their history, these card companies tend to stop doing business with you even after you submit to their guidelines and delist and delete things, as they have done PH and others in the past.