Being angry at others is like blaming the weather when a weather forecast failed to predict it correctly.
Police work according to the laws of a nation. Thieves work according to the laws of nature.
Our friends, the people we like or agree, speak the truth. So do our enemies, the people we dislike or disagree. When we hear the truth from the both, it leads us to liberation and enlightenment. When we accept one and reject the other, it leads us to self-imprisonment and pain in our lives.