Ohthegrandolddukeofyorkjellies
How old are your pupils?
The explanation would be, that although gender is socially constructed, it is very real. And people, like Webb, felt the negative effects of it.
Fortunately, judging by both clips, they recognise that it is bad for men as it is for women. Transgender people want to be the opposite sex, precisely because these roles are so rigourously enforced.
Your pupils should be able to understand this. Your problem will arise, if they decide that gender is actually an internal essence that has nothing to do with roles.
But you could force yourself to remain completely neutral and say let's discuss that then. I.e. What's more likely?
Well done to you for tackling this, though.
Or maybe the best thing is to just shrug and say well I don't know about that part. And carry on with the lesson about gender stereotyping. Which is undeniable and verifiable. Let them connect the dots on their own.