I think it is important to not be respectful in situations like this.
Behaving respectfully towards someone reinforces your tendency to listen to them and do what they say. But, where that person is abusing the relationship of trust and respect, I think you should specifically act disrespectfully as a way of negating your tendency to listen to them.
I think that parents who put their own wishes above their child’s wants and needs, are abusing the parental relationship.
(In other words, there were too many people agreeing with me, so I took it to the next level.)