I’m not sure if ISIS so much as gets funded by nations and factions unknown…
It’s more a case of “They already have funding by selling Oil from their capured territories”.
Then it’s a case of “Would you trade with ISIS to buy Oil, and if so - at what price?”
So… There are a number of actual countries that WILL buy Oil from ISIS, because those oil tankers are going somewhere. If they were all parked up, not going anywhere because of the so-called international sanctions and blockades we’re told are “In place” - then there would be a big target in the Raqqa area for example for the “Coalition” to bomb…
But it’s not there.
I suggest then, that ISIS Oil gets flogged to ALL neighbouring countries on the quiet.
Those breaching Western embargos - will only be buying it at a deep discount of course.
Those who don’t follow the west’s orders - will be paying full price.
I suggest that China pay full price then,
Israel, Saudi Arabia, Jordan, Turkey, and other NATO nations have traders in the region buying it on the cheap via Black Market channels.
The price of Oil has been falling of late, despite the Saudis cutting production. Hmm. Something not quite right here is there?
China are not buying anywhere near as much oil as they were just a few short years ago. Much of it comes straight from Russia now, where they’ve locked in a rather higher price than the current market price.
It would make sense for them to “supplement” their oil income via back channels then. It makes sense for China to be the only nation paying full market price for ISIS Oil. China have maintained a neutrality towards ISIS, looking at how they veto and block “Sledgehammer” actions put forward as motions at the UN.
The UK makes a fortune selling weapons to Saudi Arabia. That lucre being “lost” by diplomatic relations being soured by embargos against THEM - isn’t likely to happen any time soon.
We’ll continue turning a blind eye to any of their traders involved with ISIS then, along with continued civilian death tolls mounting in places like Yemen.
Saudi Arabia though is the “Central” point for the Islamic Ideology that calls itself a Religion
It’s power in the 21st century world is akin to the Roman Catholic power in the world during the Reign of Rodrigo Borgia 1492.
Christianity had a Reformation which kerbed it’s political power a few years later. The Protestant movement wasn’t really making any ground politically (like UKIP now) - until Henry VIII’s history-changing “King’s Great Matter” which saw England withdraw from the Catholic Union, akin to the EU of it’s day. The Reformation saw Britain leave this main body of the Catholic Church, accelerated the rising of the Protestant Movement in Northern Europe , and can be compared to the current desire for those same countries to be leaving the EU right now.
There is no sign on the horizon that Islam will be getting a similar “Reformation” any time soon however. Instead of “Reform” of Islam - we see brutal sectarianism between Muslim countries, which non-Muslim nations should stay well out of - but don’t.
We, the Western “Infidel” powers - get involved when we shouldn’t. Thus, no reforms happen - just civil wars which do no one any favours apart from the criminal underworld.
Consequently, the continued spread of Islam as an ideology, with it’s unholy alliance with the Hard Left who favour wheeling the Trojan Horse in the gates instead of putting a match to it - will be unstoppable in a few short years.
How a “wrong” simple binary decision - can bring down a once-noble city to utter ruin. 
We can either Ban Islam, Ban the Left (not practical, when parties like the Nazis called themselves “Socialist”), or just keep the hell out of that part of the world.
We’re not waving through North Koreans around our patch are we?
Those coming here say they are running away from Islam, and yet refuse to renounce it once here.
Try and deport them, and it’s “I face a death sentence back home”. Total bull of course.
They are here because a whole previous generation of Lefties has thought it a good idea to make benefits and public services available in this country to people that have pledged no kind of allegiance to British values whatsoever. Even if we’re still going to dish out the benefits, the housing, and the jobs to these people - surely can’t we ask just a small “attitude test” of them, that costs this country and the migrant themselves NOTHING to implement?