This is too strong of a generalization. There are several people from the woman's suffrage movement, the 1960s civil rights movement, and countless others that both had radical (for the time) internally consistent ideology and participated in activism.
Yes, there are people in radical groups just to be misfits. Yes, there are people that think and write radical ideas without participating in activism. There are also people that join radical groups because they believe in the ideology, and there are original thinkers in radical groups that participate in the activism side.
Yes, there are people in radical groups just to be misfits. Yes, there are people that think and write radical ideas without participating in activism. There are also people that join radical groups because they believe in the ideology, and there are original thinkers in radical groups that participate in the activism side.