The need to fight fascism and prevent genocide are as close to self evident truths as humanity might wish to invent. When both present themselves in the form of ISIS the question is how, rather than why, they must be destroyed.
When Islamists of various stripes won 70% of the vote in Egypt, the temptation to say 'we're doomed' and give up was understandable. But it was fundamentally mistaken. If western powers set clear standards and make use of their economic leverage they can maximise their ability to shape the development of rising Islamist powers in the Middle East.