Parental rights aren't extreme, a parents organization using an Adolf Hitler quote about controlling the country's youth is.

The funny thing about the Right and rights is, they tend to use vague statements about rights to justify atrocious things. So the proper response to "parents' rights" is the same as "states' rights": the right to do what? Impose your bigotry on others? Because that's the entire reason this group exists, to force the government to be just as intolerant as they are.