I'm going to walk away from a flight attendant as she was lecturing me for using the first class bathroom
Weren't you supposed to use that bathroom? What happened?
I used the bathroom right after I sat down in my seat, I didn't realize it was first class.
It seems like an unnecessary rule to enforce, but it is the plane's rule and you should just apologize that you did not know and return to your seat. I do not think that a lecture is necessary in this case, and the flight attendant may be wrong about that.
Nah, I'm going have to kiss ass with my white privilege and see what happens.
I think you bragging that you have a white privilege may be part of the problem why there is such a thing. If you think you are being unfairly treated better than others, then you should speak up and do something about it and make sure that everyone is treated equally so that we can eliminate such issues in our society.