This situation isn't that religious either.
Its firstly economic: tonnes of bored young men looking for meaning in life.
There have been plenty of bored young men looking for meaning in life over the years. But it's not economic; it's social. And now combined with Islamic extremism is very dangerous.
Secondly its collateral damage from a war. We kill millions and millions of innocent civilians in muslim countries for two decades, whilst the average muslim can't strike back militarily.... and this happens. Its unfortunate, but lets not forget muslims didn't invent suicide bombs (that was the hindu's) and they certainly aren't as good at terrorism as the IRA (who are catholics) or even as downright scary as those Japanese communist terrorists (they were.... well yeah jap commies) who shot up Tel Aviv.
Nah, this bloke is British born, Nigerian ancestry. He's just another loser looking for a cause.