Let me get this straight - according to this kid the teacher had solid 10 minutes of arguments, and not only did the student not bother to reflect on the points made by the teacher, but also expects the internet to come up with a rebuttal. They literally want to teach a teacher before they have started to use their own brain. I have more respect for the flat-earthers.

This kid's convictions must be flimsy if they can't come up with arguments. For things I'm passionate about I can defend them no problem.

I don't think that's what the kid was asking. They seem pretty clear on their argument, just asking how to frame it in a way that doesn't sound hostile. I actually really respect that -- it shows a maturity that indicates they'll likely grow out of they/them nonsense one day.