The term that describes individuals changing their beliefs to include the use of violence for change is radicalization. This process involves individuals adopting more extreme views and ideologies, often justifying the use of violence as a legitimate means of achieving political, social, or ideological goals. Radicalization can occur due to various factors, including social, economic, or political grievances, and often involves a transformation of identity and beliefs that align with the idea that force or violence can initiate significant change.
In contrast, mobility refers to the ability of individuals or groups to move or change positions, which does not inherently involve a shift in beliefs regarding violence. Incitement relates to urging or provoking someone to act, particularly in a violent manner, but does not necessarily reflect an internal change in beliefs. Engagement typically refers to participation or involvement in a cause or activity, which may not encompass the adoption of violence as a method for achieving objectives. Therefore, radicalization specifically captures the essence of the behavior described in the question.