Every error, of whatever kind, is a consequence of degeneration of instinct, disgregation of will: one has thereby virtually defined the bad. Everything good is instinct -- and consequently easy, necessary, free.
This only works if you jump to the conclusion that homosexuality is error, but...
error: a wrong action attributable to bad judgment or ignorance or inattention
Homosexuality is a genetic state not a psychological action. Generally. There's always some wiggle room for sexuality but not enough to say that the majority of gays choose to be so.
On the other hand, repressing homosexuality and masturbation are actions, and Nietzsche and your analysis that if "we don't chase after and obtain what we desire, what makes us happy, we become miserable." is correct.
Those types of people usually try to externalize their self-loathing and jealousy in curious ways, like convincing themselves that the ones that are able to express their nature easily, necessarily, and freely are "decadent" (free) and inhabit cages (out of the closet) and are weak (strong enough to overcome psychological, social, or religious inhibitions.) They might even try to convince themselves after masturbating 5 times in a row that the people they were watching having sex (if it's the same person, chances are they're paying special attention to the wagging of the man's scrotum and flexing of his buttock as he thrusts,) the ones living freely outside of social constructs like closed marriages, monogamy, and "hiding your shame" were the addict/slaves with the miserable lifestyle, and try to search out internet material to confirm it.
Porn is, and has always been something for perverts, I donﾂ’t care how ﾂ“normalﾂ” you think you are.
This whole spiel reeks of slave morality.
I'm holding my middle finger as hard as I possibly can.