Decline in marriage rates does not mean that people don't live together in marriage-like relationships. In Sweden, it's common to live together with your spouse for years and years, and perhaps getting married once you have a couple of kids and start thinking about inheritance laws. Having your own children as flower-children at the wedding is pretty common here, and not just in Sweden. My brother and sister-in-law was at a wedding in Wales last year, where the flower-girl was the daughter of the couple getting married.
Death of religion is a health-sign. Organized religions are oppressive and cause war and sufferings.
Women's rights movement has, for the umpteenth time, made it EASIER for women to have as much sex as they want. I.e. more people (men AND women) are having more sex.
End of gender segregation is also making it easier to have more sex. Or are you a closet gay who liked being surrounded by all-males?
Birth control is, again, making it easier to have more sex
Fake up? Whut? You mean make-up? That's as old as humanity, dolt.
Social media is helping people, who'd never meet otherwise, to get to know each other, and - you guessed it - have more sex
Tinder, same thing
Rise of androgyny, probably just means equality
Rise of cucks, just means you're jealous of the guys getting the sex you think you deserve
Oh, you would just LUUVE to be a player, wouldn't ya?
The welfare state is helping men AND women focusing on the fun things in life (like sex), instead of panicking over how to survive
Pornography is as old as humanity. When they found Pompeii and Herculaneum for the second time, they were horrified by all the porn on the walls and everywhere, so they covered it up again. The volcanic eruption of Mount Vesuvius happened in AD 79.
City living - ya know what Pompeii and Herculaneum were? CITIES!!!