Should children of people who belong to cult organisations like westboro baptist church, KKK or MAGA be removed for their own safety?

Not sure that this is the right path. But parents who indoctrinate their children with these ideologies are vermin.
I do not think MAGA is anywhere near as bad as Westboro or KKK.
Should not all US citizens strive to make America great again?
Is KKK still active?