Anyone who uses methods of brutally murdering to respond to disagreement deserves zero fucking respect to have any considered role in anything whatsoever. It shouldn't fucking matter what radicalises them more from the point of view America standing by democracy and the political system it has is far more important than than saying "we better think about the terrorists".
How can anyone hope to counteract recruitment and radicalization if one does not even attempt to understand the underlying reasons for why it works?