Quora: How much power does idealism have?
The power idealism has is that it is the basic position of Western Philosophy since Kant. As Kant said Idealism is the royal road to Realism. Thus ironically Realism outside idealism is in fact unreal. Same is true of Materialism a form of realism. Russell reintroduced Naive Realism back into mainstream philosophy as the basis of Analytical Philosophy thus returning to what Hegel called Sense Certainty which is the most Naive possible philosophical position and the starting point for the evolution in the Phenomenology of Spirit. A good introduction all of this is Braver’s A Think in this World. The power Idealism has is to organize our world. Everyone since Kant has been bound by his Copernican Revolution even if they were reacting against it. In other words Kantian Idealism is the basic position of the Western Tradition. All other positions are organize themselves around this central position. Even rejectors must explain how their viewpoint works in terms of Kant’s original formulation of idealism as the best possible access to realism.