Do they pay him what he's owed and reduce his wage? Or is it that they reduce his wages and not pay him what he's owed?
Also about the logic, Xavi has come out and said he likes FdJ to play in a new role, as CB, a position they have just signed a specialist in Christensen and also agreed to pay €50m+ for another specialist CB. So, from outside looking in, FdJ is going to get very limited time as a cb, he's not going to be used in his preferred position, is being asked to take a 40% pay cut, all whilst seeing Barca spunking endless money on new recruits with money they tell Frenkie they don't have. Oh, and also, Frenkie still hasn't signed the new co tract with the paycut.
So, put yourself in his shoes, using logic, would you be happy to stick at a workplace that treated you like that?