I think if you hold players hostage it gets noticed in the modern football world, overpowered agents et al. Us letting players like Gueye go for a reasonable price, (and lukkaku etc.) probably reflects well on us as a good club to do business with. For better or worse.
Exactly this mate.
Don't get me wrong, I feel sorry for Palace in a way on the situation, but they have engineered it by making that commitment to the player and having no plan to follow through with it. Once they sold Wan Bissaka, obviously the situation for them changed, but from Zaha's point of view it's not his problem; the commitment was made to him, so stick with it.
Otherwise Palace won't get that 21 year old talented striker or whatever in the future looking for game time to progress, because he'd get trapped.
Whether we like it or not, power is in the hands of the players these days.