Are Acorn offices clearly marked as such, or are they hidden away? If push come to shove, taking out the key leadership appears to be the best strategy. Cut off the head and the snake will die.
I used to wonder why politics in the later Roman Empire and Byzantine Empires was marked by a large number of political assassinations.
Now I know why-- in a regime where partisan differences cannot be reconciled in a republican manner, it's much less destructive to the whole society than civil war.