I am interested to know if this behavior is a racially motivated.
I am Asian and very young (looks 22 years) and I have felt on two occasions feel that the flight attendants resent my presence in First. And of course, I have gotten dirty looks because I know where the magazines were stored in a 747 and when I change seats in an empty coach cabin.
We do not let them go.
GO FOR THE KILL.
Kill such behavior by writing to all the top management. Mobilise your community and they must realise it is humans that they are dealing with. Humans that feel, cry and laugh and CAN FIGHT BACK!