Scapegoating

n. act of making a scapegoat of someone or something; act or process of placing blame on others; act or process of making another person the object of hostility

The scapegoat was a goat that was driven off into the wilderness as part of the ceremonies of Yom Kippur, the Day of Atonement, in Judaism during the times of the Temple in Jerusalem. The rite is described in Leviticus 16. The word is more widely used as a metaphor, referring to someone who is blamed for misfortunes, generally as a way of distracting attention from the real causes. Another term for scapegoat is fall guy.
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blaming someone or something else to ease our frustration and/or anger (behaviour).