> however, for the ISIS project to work, it is not necessary that all Muslims agree with them.
Perhaps, but how far will they get? There are Muslim nations that are fighting ISIS, both in military and in talking about their corrupt ideology and explaining how they have gone astray. For example (if you speak Arabic): https://www.youtube.com/watch?v=vb2yAczRc5g
> Your theological objections cannot be taken seriously because they're a state power
While ISIS may not take what I mentioned seriously, the goal is to educate people (especially the emotional and easily charged youth) into showing how misguided ISIS are, and answer their questions in an attempt to prevent the corrupt ISIS message from influencing them.
> where one side of the argument is a state
Just because they call themselves a state does not mean they are :)
> are best settled by war.
We try to educate first and bring truce, but yes, sometimes fighting is unfortunately necessary: http://quran.com/49/9