Yes it's true
Isn't the purpose of education to teach skills which enable people to think - challenge fixed beliefs and while I'm not sure undermining parental authority is not the goal - or necessarily the end product of raising a child who thinks for himself, what parent actually wants to raise a child who never questions anything.
Are their beliefs so fragile that they can't defend them against questions and/or logic?
We oppose the teaching of Higher Order Thinking Skills (HOTS) (values clarification), critical thinking skills and similar programs that are simply a relabeling of Outcome-Based Education (OBE) (mastery learning) which focus on behavior modification and have the purpose of challenging the student’s fixed beliefs and undermining parental authority.
Here's Steve Colbert's bit on it.