We lost this argument long ago and never realized it.
In 1996, Congress passed the Defense of Marriage Act, by huge margins in both houses of Congress. Even most liberal Democrats at that time voted to support marriage as being only between one man and one woman. Regardless of their support for other homosexual rights issues, they thought that marriage should be codified into law as a man and a woman.
What changed since the mid 1990s? Why is it that now every liberal is out and explicitly in favor of homosexual marriage, when less than 20 years ago, only the fringe of liberal radicalism favored homosexual marriage???
Homosexual marriage has become mainstream as much as support for abortion or global warming, in that, they are all issues that to be a good liberal, of course you support it.
What I don’t quite understand is how is it that homosexual marriage was NOT always a liberal cause, and somewhere along the way, it became a liberal cause.
See Romans 1:18-32. It expains the every quickening downward spiral which results from man rejecting God. God "gives them over" to their own worst natures and their behavior and beliefs get worse and worse.