Back in the 1920's IIRC, the left realized human common sense caused their vision to fall flat amongst the populace. They've been trying to "correct" human nature ever since (Antonio Gramsci & Paolo Friere come to mind, heck even John Dewey)
The children are the social Marxists future. Have been for many decades. Our children have been specifically targeted for a century by our pubic schools, news, media, churches and now social media.
We had John Deweys early 1900s Progressive (Marxist) influence, followed by The Frankfurt Schools mid-1900s social Marxist plan for children, then Hollywoods 1950s communist influences, then NEAs No God push in our schools.
Then the 1960s CPUSA push of college youts for war protests, drug use and wanton fornication, then the 1980s sitcoms ridiculing parents, then the 1990s queer push, then the 2000s self-esteem facade.
Now, social media feeds their ignorant arrogance.