I am a millenial, so I can't comment to much on the pre 1990s, but I would have to say that the advent of phones/social media has really degenerated our culture to one of vane hedonism, sprinkled in with a little bit of woke virtue signaling to give us a false sense of moral superiority.

The advent of social media and phones has also completely destroyed our social fabric and has atomized/divided us into malleable dopamine-thirsty slaves, incapable of holding a conversation or being able to exist without looking at your phone for more than a couple of hours.