Why Does the Wizard Cabal hate Sorcerers? Why are they hunted nation wide?

[Zeromaru X]

As an update to this, in the Age of the Wolf book, it's revealed that Skelfer eventually grow tired of the Wizard Cabal's injustices and returned to the world once more and destroyed the Cabal, with only a handful of wizards surviving and retreating to Bramwald. So, in the end, the Cabal's zealotry came to bite them in the rear...