Over unionised majors are doomed. There is no justification to pay flight attendant $250k irrespectively of length of service. It is not happening in any other industry and it shall not be happening in airlines.
Usually the old flight attendants have the worst attitude towards customers who tend to forgive them because of the age, and then you have a similarly aged group of customers who writing the commendations for them in a sprit “she is one of us”. Get real.