You are missing the point.
No one is saying that identifying as a homosexual is wrong, but performing homosexual acts is a sin.
God said go forth and multiply, not go forth and mutually masturbate each other.
Men can love other men. They cannot however be properly married. They can be “married”, but they cannot be Married sacramentally. Marriage is a trinity, like the blessed trinity, the third party being the life that is created as a fruit of the love.
Look, talking about how loving homosexuals are and how much they help in the community and how that justifies their living in the spirit is ********. I give to the homeless, give up my seat on the bus, listen to others, go to church every sunday, love God and defend him when possible, but i still sin. I still masturbate, and think lustful thoughts. I still tell little lies every now and then.
One of the greatest steps i took forward in my journey spiritually was accepting my sinfulness, and moving towards following the laws of God rather than trying to justify my own sin. Accepting our own personal fallibility and weakness breeds humility, and gives the main reason Jesus Christ came down to earth: to live the life of man so that God could relate better to our weakness.
Irrationally arguing and ignoring the arguments of others concerning sins shows spiritual immaturity.
Whether you like it or not, homosexual acts are sinful and selfish in nature.