How should we deal with them?
We should do nothing. Within Buddhism, the Buddha has already taught us monks how to deal with “evil Bhikshus”: Simply ignore, do not talk to them. Leave them alone; they will leave by themselves.
Can you see the wisdom in the Buddha’s advice?
Evil people are very destructive. Just stay away from them and they will eventually destroy themselves without our help.
Consequently, monks who rally others to “evict and punish” bad elements of society should reconsider their actions. Such behavior is deplorable because they go against the Buddha’s teaching and damage our compassionate nature.