If the fighters wanted it to happen they could definitely force the situation. Problem is not many of them seem concerned about it, which leads me to believe that things aren't as bad as the fans make it out to be.
But if the fighters came together, held out if necessary it would get done. What's the UFC going to do without Jon Jones, GSP, Evans, Silva, JDS, Reem, etc. If enough of their draws and champs held out they'd have to talk.