Not everyone likes it. The city has enemies and they planned sabotage. If they manage to carry out their plan to bring down the mine, then many workers will suffer. Simple guys, not evil. Along with this, the enemies are going to kill the blacksmiths. Their second plan is simple: stand on high ground and fire arrows.
If the town loses the mine and blacksmiths, then it will be ruined and the inhabitants will have to become vagabonds and beggars in other towns.