More from the article:
"... such distressing numbers do suggest that the Marxist's ghost has helped render millions of children receptive to collectivist falsehoods.
"In kindergarten and preschool classrooms all over America, tiny young humans are being taught to regiment each other's behavior. Obedient little collectivists are learning to submit to group wishes in order to be judged "correct" -- politically correct."
Check out the entire article at the link, then # 2.
Children find security in structure, and in the absence of some structure in their family lives (which may be increasingly chaotic), will seek it where they find it.
Caught young enough, few will rebel until they are older, unless parents take the time to provide a counter to the socialist indoctrination.
When children are taught to be responsible for themselves, the desire for freedom follows naturally. When they are responsible for the behaviours of others, despotism often ensues--especially if it is encouraged--because they have little control over all else in their lives. If that seems chaotic, they will try to establish order.