Indeed, seeing as RR was 30 years ago in a different America, by all means, let’s toss in the Communists being Evil, that should garner mass support..
According to my calendar and how I remember things, Jimmy Carter was President 30 years ago in 1978 and Ronald Reagan left office less than 20 years ago on January 20, 1989.
Funny, isn't it, how Jimmy Carter, 30 years later, is still screwing things up and we are still cleaning up the thirty year old mess he left in the Persian Gulf.
But, be that as it may, you have made your point:
In your World, core values and the lessons of History have a time limit of less than 30 years.
If stating that "the Communists were Evil" is too controversial for you to pass on to a younger generation, then don't be surprised if Communist rhetoric seduces the minds of that younger generation like that same Communist rhetoric seduced the minds of several other generations in the 20th Century.
"I have recorded these events in the hope that the reader may profit from them, for there are two ways by which all men may reform themselves, either by learning from their own errors or from those of others; the former makes a more striking demonstration, the latter a less painful one." .... Polybius (200-118 B.C.), Universal History, Book I, Chapter 35