Yep. Most people especially in the right and obviously in the US TOTALLY deny any social or contextual reasons to the rise of extremism. They just say "These people are crazy". Far from that actually, especially ISIS, Hamas or the Muslim brotherhood. These people are organized, thorough and have an actual administrative infrastructure, and take over what the state has not been able to do. But that analysis obviously doesn't sit well because to confront it you would have to give more power to the state (SOCIALISM ALERT!!!).
Funny enough, most arab states had a brand of nationalism mixed with socialism in the 70s-80s, and were secular. That did not sit with the powers that be.
An understated aspect of this whole conversation is that, especially in Europe, it's not so much/only that Islam has become more radical (there has always been extremist pockets in Europe) but...that radicals have islamized. There is no other valuable "alternative" to the mainstream neo-liberal system. Socialism and communisms have been destroyed, and the neo-liberal system itself does not provide a "story" or an inspiration for the future. It's only message is "You're on you own, get your money or it's your fault". There is no social project, nothing people can believe in anymore, as individuals or societies.
So while before people who were against neo-liberalism and all-out capitalism could turn to socialism, communism or "Another world is possible" movements, now they really can't. What's left? Religion, that gives a sense of community and a "purpose". This also explains in part the rise of the "born again" churches in Africa, but in Europe it's Islam (with it's extreme parts) that has provided that alternative.