You may want to do some research about 1950s-60s era America. It seems that you have somewhat rose-colored views of that period. Fallout 3 shows very clearly the hypocrisy and underlying contradictions (that exploded into the violence of 1960s public demonstrations which created some of the changes we have today, but that we still struggle to truly achieve). A movie such as Mona Lisa Smile is very accurate because it was historically researched. There are many similar movies (Come See The Paradise would be another example, or Newsies).
For example, people did not have much respect for each other unless the "other" was in a specifically accepted and acceptable grouping/category.
Another example: marriages of different ethnicities were quite rare before 1960 (and there are still areas where they are viewed dimly by some individuals). Here is a good article about the trends (article from 1998):
http://www.washingtonpost.com/wp-srv/national/daily/dec98/melt29.htm
but it is still a fascinating time period all the same, the transition from 1950s to 1960s culture is unique because you're literally watching a mass paradigm shift of culture in less than 20 years people went from rigidly conformist to flamboyantly rebellious. And such shifts were not unique to the 1950s/60s, the same could be said between the 1910s and the 1920s.
one could even argue that it's that case with every single decade of the 20th, that's why I love it so much. The culture of 1900 was radically different from the culture of 1910s, and that was different from 1920s which was different from 1930s, and even after the 60s. the 80s were a very different time from the 70s, and the 90s were very different from the 80s.
but I do agree with you in that people have a very rose-tinted memory of the past. The 1950s were a very crippling time for people who weren't upper-middle class white men living in the suburbs. Even in the 1950s the writing was on the wall that change was on the horizon, and even in the 1960s there was a massive amount of hypocrisy. Many of those same hippies who preached peace and tolerance were very intolerant in their own ways, and after the 1960s there seemed to be this general understanding that we should all be trying to be recreating the 50s rather than learn from its mistakes.