The homosexual does not come as a result of the attempt to create a classless system, you could say lgbt and other deviant people are compatible with the communist sense of equality, but deviants are far more compatible and does come as a result of the capitalist urge for a better worker/consumer.
Notice that homosexuals does not necessarily make a better worker, that is because our modern world needs consumers more than they need workers at this point in time.
That is of course because capitalism is so amazingly more effective at generating more capital than any other materialist system communism included.
This excess of assets demands nothing but more demands, more consumers.
And homosexuals, and other deviant peoples comes as a direct result of people becoming the perfect consumers.
You ask any right wing white man when he last bought a pair of shoes and he'll say something like: a couple years ago I bought some shoes used, but most of my shoes I have acquired through other means such as inheritance.
This person is highly incompatible with the current consumer-culture.
Gay's simply make better consumers which is why they are constantly shilled on commercials despite anti-gay incentive still being so prevalent in our culture through for instance language.