What are teachers teaching?
Is socialism better than capitalism? Is socialism the be-all, end-all?
Where did their teachers go to college and grad school? How liberal was their education? Ask your kids' teachers about socialism and what their views are of it.
Read this article titled "Why More Young People Favor Socialism and What We Should Do: Mary Eberstadt"
Print the four pages and discuss them at dinner or at a family meeting.
Admittedly, I grew up in a different generation, when Russians and Communists weren't our friends. It was clear that they weren't our friends. And they aren't now. I wasn't sucked into the liberal viewpoint of the 1960s. Heck, going to college in Iowa, I'd say I missed the Sixties.
I favor Education, not Indoctrination.
Make certain your kids get educated.