I am an ignorant person as far as Islam is concerned but what I do know is that Quran has many interpretations. Are you trying to say that under no interpretation of Quran is it possible for homosexuality to be valid?
Also, we humans have ventured the earth for a few million years , even when there was no invention called religion and will continue to do so even if tomorrow all religions vanish. So why is it important for a religion to stay the way it is? At the end of it, all religions have been invented by men and women. As a Hindu I believe God exists in everything and in nothing as well. So what is the problem if tomorrow I come up with my own interpretation of any religion or give up my religion altogether?