If you think I go on about gay marriage or relationships try checking out a few media outlets that pour out their propaganda in the name of equality.
Morally speaking heterosexual marriage can never equate to gay marriage even if they share various aspects.
Morality comes from God, evolution believes we are forces of nature free to decide what is wrong & what is right.
God doesn't change, people like shifting shadows often do. God is light & in Him there is no darkness.1 John 1:5-10. Some things gain or lose momentum, God remains the same, strong & constant.