Thanks to education and science we now know the Earth not to be flat, similarly we now understand homosexual relationships as being positive and non-threatening.I gave you an answer. Maybe you think that the tens of millions of people who believe/believed in the Christian understanding of homosexual relationship were/are wrong.
You may believe that gays chose to be gay but the fact is:
1) you are not gay, I presume, so you have no first hand information on the matter
2) gay people themselves will tell you that they had no choice in the matter
3) all respectable research in the matter backs up that there is no choice in the matter
so then you are incorrect.