That's the statute you'll be charged with, acquitted or not.
When crew members give unlawful orders to you, they, and their company are the liable party, and they will pay for it in court.
And if you want to keep defending a position that the law does not support - which is predicated in the passenger assaulting or intimidating a crew member, and has nothing to do with refusing, lawfully, to voluntarily give up their seat, go ahead, it won’t work in court. Laws have a purpose and safety and security, not unlawfully removing someone from their seat, is the purpose of the law. It does not make dictators of crew members able to act on a whim.