I am completely in favor of equal rights, and I completely agree homosexual people should be able to express themselves freely. However, it's about religion. People's religious sentiments must be respected. There are certain things that are just not meant to be for certain people. Like giving birth is not for men.

Mark 10:6-9

But from the beginning of the creation, God made them male and female. For this cause a man will leave his father and mother, and will join to his wife, and the two will become one flesh so that they are no longer two, but one flesh. What therefore God has joined together, let no man separate.