Sounds like their parents aren’t doing their job.
That is absolutely the problem. The parents need their asses kicked for allowing the leftist indoctrination to go on all these years.
Yes sadly my sister passed when they were young and their career civil servant father and his career civil servant wife raised them in the Democratic Socialist utopia of Annapolis, MD. But it doesn’t really matter. If your kids are in public school they will be subjected to this constantly everyday.
My best friend has had her kids come home spouting this nonsense before. Fortunately she’s an attorney and conservative so she sits them down and splains it all So does their dad.