It's simple. When the football authority is toothless, the referees should take this into their own hand.
I know this is at a very small scale, when I was a committee member in our RA, our policy was when the referees welfare or refereeing integrity was of concern, the team was not getting any further appointments until a 'satisfactory' outcome was reached. Sometimes we had to compromise but a clear message was sent.
Real Madrid did it last time. Spanish FA did FA. The message is clear.