Such a person is a hothead or a bruiser, or has a chip on his/her shoulder.

According to Vocabulary.com,

A hothead is someone who's suddenly and easily angered or agitated. It's usually a hothead who starts a riot or turns a peaceful protest violent.

^{Source: https://www.vocabulary.com/dictionary/hothead}

According to CollinsDictionary.com,

A bruiser is someone who is tough, strong, and aggressive, and enjoys a fight or argument.

^{Source: https://www..com/dictionary/english/bruiser}

Such a person is a hothead or a bruiser, or has a chip on his/her shoulder.

According to Vocabulary.com,

A hothead is someone who's suddenly and easily angered or agitated. It's usually a hothead who starts a riot or turns a peaceful protest violent.

^{Source: https://www.vocabulary.com/dictionary/hothead}

According to CollinsDictionary.com,

A bruiser is someone who is tough, strong, and aggressive, and enjoys a fight or argument.

^{Source: https://www.collinsdictionary.com/dictionary/english/bruiser}

Such a person is a hothead or a bruiser, or has a chip on his/her shoulder.

Such a person is a hothead or a bruiser, or has a chip on his/her shoulder.

According to Vocabulary.com,

A hothead is someone who's suddenly and easily angered or agitated. It's usually a hothead who starts a riot or turns a peaceful protest violent.

^{Source: https://www.vocabulary.com/dictionary/hothead}

According to CollinsDictionary.com,

A bruiser is someone who is tough, strong, and aggressive, and enjoys a fight or argument.

^{Source: https://www..com/dictionary/english/bruiser}