"...derail meaningful discussion..." Oh. Who's being dismissive, Kay? You refuse to address the parent's arguments on their own terms, purposefully reading t

"...derail meaningful discussion..." Oh. Who's being dismissive, Kay? You refuse to address the parent's arguments on their own terms, purposefully reading them in as obdurate a manner as possible, completely failing to engage them, and then blame the parent's "dismissive language". They are meaningful discussion.