That argument smacks dangerously of eugenics. Conservative and religious parents have leftist and atheist kids all the time. My spouse and I are both from families like that, and won't be teaching our kids those values because they're bat shit.

You can see how both ideologies are self defeating in how the rates of practicing Christians in the US is dwindling, and the ultra conservative base is aging faster than they're being replaced. That's why they're pushing abortion and gutting school systems so hard. The only way they replinish their numbers is through force and sabotage.