I'd argue it has more than budged, it's moved dramatically. I know several people who make amateur porn. These are professionals in tech! I know an ever-growing number of people who are in non-monogamous relationships, who defy traditional gender roles, who embrace alternative/kinky sexuality and who in some cases are raising their children in homes accepting of all of these things.

Cultural norms were vastly more oppressive and restrictive in the 1960's. And in the 1990's.