No single factor explains why people withdraw from high-risk activism or political violence; disengagement typically happens because of growing disagreements over time as opposed to singular triggering events.
political violence
When aggrieved individuals perceive that their political activities make a difference, they are less likely to support political violence to change the status quo, meaning that this sense of “political efficacy” is a moderating factor in individuals’ likelihood to support political violence.
Symbolic targets and threats to identity privilege are more important to motivating right-wing terrorism than objections to policy or economic factors.
The most prominent "push factors" in terrorist disengagement are forms of disillusionment, as well as to some extent burnout.