I have to say I don't like reading ITT that Desmond for sure will end up dead behind the dumpster. It's getting tiresome, and if Wendy is reading this shit, it's giving her ammunition to twist it into: "haters want him dead".
I see his situation as definitely abusive, but I can see potential for redeeming arc. He is a child of narcissistic, neglectful parents. He is trying hard to please them, because in his mind these are the only people who really care about him. He has no friends at school, and these POS are his only people in the world. But this situation will change once he will hit puberty. Two things will happen simultaneously then: he will lose his appeal as a child, and the surge of hormones will create a storm in his brain leading to questioning everything around him.
He can coast his fame for a while as a drag teenager, surely still somewhat unique, but eventually, he would have to fight for fame with tens and hundreds of other queens, more talented and attractive than him, in a city that is swarming with attractive, talented, and starving people.
I have faith in Desmond and in the power of testosterone. I don't think he will shoot his parents, but I do hope he will slap this fat bitch at least once. And then he will try to find his way. Maybe he will enroll in a city college for accounting program? Growing up poor often makes children yearn for stable income...