The illuminati is hardly hiding their existence anymore, I received a flyer on the fourth of july for a seminar discussing a new world government.
The illuminati does exist, there are intelligent extra dimensional beings involved, I have seen one in person, and yes, they will fail. Love wins always, quantum energy is instantaneous, ego can only move at the speed of light.
Those extra dimensional beings may very well be demons, and yes the illuminati will eventually fail.
According to the bible, the devil is the true ruler of the world currently (pulling strings behind the scene), so this would make sense with illuminati. However god will soon and the government of the devil and replace it with his own government, solving all problems that were caused by the rule of satan.
That's essentially the message of the bible. Altough illuminati is not mentioned in the bible, it does say that the world is in the hands of satan.