It's obvious the Obama colluded with Saudi Arabia and Qatar to create ISIS. He also overthrew Qaddafi in Libya, which destabilized the region and set the stage for the attempted overthrow of the Syrian regime. It was a bipartisan policy, supported by delusional neocons on the republican side like John McCain as well. However, looking for "root causes" is a waste of time. We know the root cause. Islam is a pseudo-religion of violent conquest. If you admit muslims into your country, an uncertain but not trivial percentage of them will engage in violent jihad. A very significant percentage will support the jihadists, either through funding, safe houses or looking the other way. There is a obvious correlation between the percentage of muslims in a country and terrorism. Some, like Germans who support Merkel and most euro governments, are prepared to accept that. The reasons are murky, since it would seem to fit the definition of treason.
The USA has been such a powerful country, that no nation did dare to point out when it was going into making mistakes. This started under Reagan actually. I think that JFK, or any Kennedy guy would have tried to find out from EU leaders if they were into making mistakes. So now, the only solution I'd see, is to send them all first class to the USA.
Root causes? I was reading some Philippines history a while back. There was a report dating back maybe three hundred years, an Islamic knife-man striking a public market, taking out as many people as he could until subdued. No, this is before any such thing as USA. It's rooted in the Islamic literature, largely the Koran. The Koran actively advocates continual warfare toward world domination. It licenses devotees to take up the sword, not depending on the arrival of a messiah to do the bloody dirty work. It licenses devotees to go beyond regional conflict, not just to carve out a promised, deeded region of the world, but to continually expand until the whole world has submitted to domination. Not just using psychological warfare, as has Christendom, but by all means of warfare. So, it advocates total war, all the time, for all regions of the world, until total domination. So, it differs from Judaism in that it goes beyond any given region (ie. "greater Israel") in its scope (while it waits for its Messiah to expand the scope to world wide by the Messiah's own sword), and goes beyond the psychological warfare that Christianity wages for the domination of the whole world (while it waits for its Messiah to actually shed the blood of the die hards). It's liturgical licenses are active, global, and total, by any means, by any devotee, without the patience to wait for a Messiah/Mahdi to do the dirty work.
http://www.mirror.co.uk/news/world-news/first-picture-gunman-stephen-paddock-11274144 First picture of gunman Stephen Paddock who killed at least 50 people by opening fire on Las Vegas crowds Paddock was named as the shooter who was shot dead by police after killing at least 50 people and injuring 100 This is the first image of the suspected gunman who killed at least 50 people when he opened fire at a music festival in Las Vegas. Stephen Paddock has been named as the shooter who shot dead crowds of revellers at a country music event on the city's world famous strip. As well as the 50 people confirmed dead, over 200 others are injured after the gunman opened fire on music festival revellers. Crowds were enjoying the Route 91 Harvest country music festival when the shooter reportedly started spraying bullets from a hotel balcony.
The relevant questions are who did he support in the election. What groups did he show an affinity to. Who's books had he read. These are all questions the media is surely looking into but we will only be inundated with the answers to them all over cable news if the 'correct' answers to those questions are found.
Look at all the Christian right wingers trying to piss on Muslim right wingers, the only difference is the religion, two sides of the same coin.
Jihadists have been cutting off heads and killing infidels since AD 570 as instructed in the writings of the pedophile goatfucker, long before the USA was founded. And now it's the fault of the USA? There's only one cause and that are the idiotic beliefs of muslims: believing you get to fuck 72 13 -year old virgins in the walhalla if you kill non-believers.