As a history teacher you should know two generations is nothing. A blink of the eye.
We went from teaching the Bill of Rights as an immutable expression of the Founding Fathers desires to the observation by liberals that the constitution is a living breathing document that can and should be changed to fit the whims of each new generation. In fact the entire takeover of both the educational system and the American government by the liberals and their masters the globalists took place in just about two generations. Just the blink of an eye, Hey?
Have you got kids? If not know anybody with kids in elementary school? Ask what time of year they hold the annual United Nations Day wherein the kids come dressed in the costume of their favorite country and bring in food dishes from that country. Classroom doors are decorated in detail and a contest judging the best doors are held. Guess what nation cannot participate? Well the host nation of course. The USA because that would be an unfair advantage. This has been going on for a generation in the cities. A blink of an eye and we've lost our children to the altar of ultimate evil.