I think if the captain doesn’t like you, what they say goes & it’s a federal matter.
I think the reason for the captain not liking you is secondary and could get him fired but it’s still: mess around in federal airspace, deal with the feds. Follow all instructions of all flight crew or you’re a criminal, regardless (I think).
Not actually the FBI though is it? Captain probably wanted to sound serious (mission accomplished).
Doesn’t even necessarily have to be the captain - refusing to follow instructions/direction of any member of the flight crew is a serious problem.
And yeah, if it was ridiculous or violated some other law or something they’d eventually have to deal with the consequences of that, but while in the air, what they say goes.
So what you're saying is if the captain doesn't like you because you're Zionist they can remove you?