This is definitely a plausible Hank moment, but only after a long episode of him misunderstanding and getting it ignorantly (but not maliciously) wrong at first, being distressed and confused about how he’s out of touch with the kids and gender ain’t simple like it used to be
right up until some rude asshole does this in his face and he needs to stand up for his friends / family and suddenly Understands the emotional crux of the issue