I consider the peak of human civilization to be late 90s early 2000s.
No era is perfect and it had its problems, but the good far outweighed the bad.
I heard something recently that made me think though -- Someone said the 70s were the hangover for the 60s that laid the groundwork for the 80s. This framework seems like it could work somewhat -- The 1930s were the hangover for the 1940s, which laid the groundwork for the 1950s. The timing doesn't work perfectly but then we're living in a dynamic system so people are reacting to stuff. The 2010s and 2020s being the hangover for the 1990s and 2000s, leading potentially to a banger in the 2030s? Hard to say, we'll have to see. No matter what though, this moment will pass, as will the next. We live in a dynamic system and the only thing that won't change is things will change.