Mostly Republican governors and legislators in more than a dozen states are fighting to give parents more control over what their children learn in public schools, banking on so-called parents’ rights bills as a political winner. But educators worry that empowering parents to veto books and history lessons would push many already stressed teachers out of the profession. During the pandemic, many parents have bristled at school administrators’ decisions on in-person learning, masks and quarantines. Newly elected Virginia GOP Gov. Glenn Youngkin had made parental involvement in education a centr…