The significance of your list assumes that Country = Country's Government. That might be more or less the case for most Western countries with a democratically government. But what about the Arab states. We have no way of knowing if the masses of those countries are actually sympathetic to IS cause (sympathetic until they actually have the chance to live other it). So while a certain Arab government might condemn IS, their support for any US military action might be just that, fighting words without any bite. Who knows if this will turn out to be a coalition of one backed up by a peanut gallery of nations unwilling to contribute a single soldier or even let their territory be used as an operations base.
I've got a better match for you. Here are just some of the entities that the Islamic State has made enemies of:
- Iraq - 65% Shia so mostly against.
- Syria - 72% Sunni but currently at war with them and partly living the reality of ISIS rule, so against.
- Jordan - 92% Sunni, relatively secular country, no history of widespread ISIS support but possibly in doubt.
- Hezbollah - Shia militia currently fighting against ISIS in Syria so against.
- Free Syria Army - Relatively secular, moderate and currently at war with ISIS so against.
- United States - Definitely Against.
- Britain - Definitely against.
- Iran - Shia country efinitely against.
- Saudi Arabia - In doubt.
- Russia (maybe) - Scared shitless of this kind of movement spreading to Russias moslem regions so against.
- al-Qaeda - Threatened by ISIS so, against.
There are also some other entities involved in this the original list left out.
- The Kurds - Mostly Sunni but largely secular and at war with ISIS so against.
- The Kurdish Yazidis - Currently watching their women being sold as slaves to ISIS fighter so definitely against.
- The EU nations - Definitely against.
- The Non EU Nato nations - (chief among them Turkey) Definitely against.
I'd say his analysis is overwhelmingly correct.