What are you talking about? People weren't conservative at all after WWII. It was the age of the great liberal consensus.
I mean "conservative" in a traditional/cultural attitudes sense, not the modern American sense.
You think moving to the suburbs to live in air-conditioned and television induced euphoria was in line with traditional society? The postwar years were HUGELY transformative. What about them do you find conservative?
different era where the terms had different meanings. If one looks at the congressional delegations of that time, one won't find very many Barney Franks or Chuck Schumers.