The late sixties/early seventies were unique in how the older generation completely caved to the whims of the “youth”. I don’t believe WWII vets were the biggest fans of abortion, drug use, promiscuity, etc.
Don’t let the evidence stand in your way, though.
The “evidence” is that you just don’t know history or reality and you live in some fantasy of children running America, you also seemed to have skipped an entire generation.
The Supreme Court was not making Court decisions based on the Republican voting youth and their little brothers and sisters in the 1960s and 70s.
The first election in which all boomers (the Reagan generation) were old enough to even vote for President was in 1984, they weren’t running America at all, yet you have them legalising abortion in the 1960s and then deciding Roe v Wade in 1973.