That sounds exactly as repressive and hateful that other major religion, as well as historical laws which punished homosexual acts in many western countries. You have highlighted the difference between our desires and our behavior, but you seem to deliberately avoid acknowledging that straight people are permitted an institution in which their desires can be met within constraints, but gay people are not.
"You're invited to participate in our faith so long as you scrupulously act like someone else for your whole life" sounds a lot like an unvitation.
You also acknowledge that even straight people have constraints in Islam, i.e. no sleeping around etc, why not also argue that it's somehow terrible that straight people have to repress their desire to fornicate?
"You're invited to participate in our faith so long as you turn your focus away from your base desires and towards God and the hereafter"
You're insinuating that you're being targeted or singled out whereas Islam "blanket-bans" entire categories of what are considered regressive behaviours such as overeating, you're not being targeted here, so can you stop with the victim complex please? Islam is as against environmental destruction, abuse of animals or overeating as much as it is against what it sees as wrongful sexual desire. What I feel like is being missed for the trees here is that the "holisticness" of Islam. It's against what it sees as destructive behavior, without prejudicing or singling out any specific group. Look at the higher purpose here.
Liberal humanism is against what it sees as destructive and oppressive behavior, without prejudicing or singling out any specific group. Look at the higher purpose here.
You can accept that or not, but it's disingenuous to equate asking gays never to have sexual or romantic relationships, to asking non-gay people just to curb excess.
That's not an equal imposition, it feels like self-equivocating ad-hominem to read "you're not being targeted here, so can you stop with the victim complex please?"
If you agree that it's better for gay people to never experience intimacy, please just say so, without labelling the concern (that gay people may feel less invited) as ridiculous
Forbidding a person from lusting anyone other than spouse whether they like it or not is no different than forbidding a person from having gay desires. And no amount of self identification can label that inhumane.
Orientation is not a choice, and is orthogonal to identification.
I believe that same-sex relationships can be as profoundly fulfilling, enriching, and pro-social as heterosexual relationships.
That marrying a straight woman with a gay man is profoundly unfulfilling for both.
And that denying a class of people something so profound, freely enjoyed by everyone else, and which does not harm anyone else, can indeed be seen as inhumane.
I don't believe for a second any person has this immutable orientation, straight or gay. And likewise, I don't believe it is inhumane for a person to avoid a relationship that is illegitimate. Trying to argue otherwise is like arguing the color blue can also be seen as red.
Have you felt strong attraction for both sexes? If not, have you tried to?