This nicely captures the crux of the argument. I suspect it also explains why you’re going to have an uphill battle convincing a lot of folks.
When the presumption of ill intent (and not e.g. confusion or ignorance) is automatic, there’s not much left to discuss.
It’s worth remembering that cis children (and adults) are misgendered too, including for reasons as banal as unorthodox appearance or unusual names.