The phrase "parental rights" — while by no means a new term — has re-emerged during recent conflicts over sexual orientation and gender identity policies in Canadian schools. When some parents and socially conservative groups protested LGBTQ-inclusive education school policies on Wednesday across Canada, many did so under the banner of parental rights, scrawling the words on signs and invoking them in speeches. It's especially come up in relation to policies that let LGBTQ kids change their name or pronouns without requiring schools to inform their parents. Saskatchewan and New Brunswick recently introduced policies that would require parental consent for...