I love that your example of things not being perfect in 1945 is indoor smoking.
Me too. And millions of other people no longer having moron smokers' poison imposed on them.
Sure, it was a great time for the right people.
But there were a few drawbacks.
1) Hundreds of blacks were lynched (many were WWII veterans)
2) Birth control for women was illegal
3) Domestic abuse was considered a man's personal business
4) Child abuse was rarely reported and even more rarely prosecuted.
5) Air and water pollution was building rapidly.
6) Rural areas often had no electricity (or running water)
7) Women had few options outside of being a housewife.
8) The flu and TB were major killers.
9) Polio was crippling more than 15k children per year
10) Air conditioning was rare
11) Most people lived and died within 50 miles of where they were born (other than military service)
12) If a black person tried to vote in the south they were often stopped or worse.
13) Access to information was seriously limited for much of the nation
So spare us your view thru rose-colored glasses.