Were you aware that airlines "unloading (paying) passengers is not unusual"? if you were a paying customer, sitting in the seat you paid for, how would you have handled being told to leave the plane?

if you are talking about current time the answer is no

if you are talking about when the colonies were developing the answer is yes

so they can differentiate themselves from others as they saw themselves as the superior race. the star was basically a symbol that meant you are a less of a person than i am because of my race. the star was also degrading for those who had to wear it because they were aware of this and the nazis used the notion to make them feel less like a person.