The debate over sexuality in America has moved far beyond what behaviors are okay and what is off-limits.
Buried beneath, there is a deeper misunderstanding of what it means to be human.
The argument in our culture is about whether anything physical—i.e., our bodies—has anything to do with the way we should live our lives.
John Piper got to the heart of this issue earlier this month, discussing transgenderism and Laverne Cox' assertion to Time magazine that biological gender "doesn't necessarily mean anything inherently." (Of course, if you're a naturalist, the case could be made that your "inherent" sexual desires are just a physical as your genitalia—since they're the product of chemical reactions in the brain.)
But the issue applies beyond transgenderism. Whether it's homosexuality, bisexuality, polygamy, polyamory, "throuples," or gender-questioning children, the LGBT worldview is this: your thoughts and feeling determine your reality.
21st century man—just like the gnostics before him—is attempting to divorce the physical body from reality itself.
That's why "natural marriage" arguments (e.g.: marriage should be defined as monogamous heterosexuality because that's what biology requires for reproduction), as sensible as they are, have fallen on mostly deaf ears.
So what part of daily life is reinforcing this perspective?
I daresay—to one degree or another—social media is partly to blame.