To say unbelievers are demons is yet another false way to exalt yourself over and above those who think differently from you. It is a defense mechanism, throwing mud in your opponents face and saying look your dirty...

You don't need to refute anything demons say, they are demons, you don't have to respect them..

Your assertion is shallow to say the least, it is nothing more than being being prejudiced to those who disagree with your dogmatic ideology.

It is not indicative of a higher spiritual vision or realization at all in any way, it shows rather a small minded paranoid fatalistic view of the world outside your bubble...