... let's assume we are not engaged in a "war of ideology" but a "war of civilizations".

Does that change the equation?

One assumption here is that world opinion really does not matter much, as it is inevitable that lines are being drawn and there is nothing we can do in the information operations arena that can change Islamist ideology and its increasing acceptance in the Muslim world.

The only variable is when each Western country will realize they are in a fight for survival of their way of life.