For a very large chunk of the population, life is much better today than it was in 1965. Ask the average person in a 3rd world country which has now lifted out of poverty since then or someone who didn't live the straight white ideal 1965 scenario.

And even for people who did live the best possible situation of 1965, we are no longer poisoning everyone with lead and asbestos in the way we were back then. As well as many things we consider absolute requirements like air conditioning being considered an optional luxury back then.