I disagree with you. Wittgenstein's generation of philosophers did contribute something crucial to the twentieth century thought. At least Karl Popper (1902-1994) should be mentioned in this context. His arguments against the political philosophies that emphasise metaphysics are traces of the world that resulted in communism and fascism.
The German philosophers before Wittgenstein (Hegel especially) created a philosophical atmosphere in which it was acceptable to create large metaphysical constructions such as the proletarian state or the third Reich. Popper among the other liberal thinkers devoted significant part of their academic work to show that communism and fascism were founded on metaphysical constructions that could not deliver the dream they promised.
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I disagree with you. Wittgenstein's generation of philosophers did contribute something crucial to the twentieth century thought. At least Karl Popper (1902-1994) should be mentioned in this context. His arguments against the political philosophies that emphasise metaphysics are traces of the world that resulted in communism and fascism.
The German philosophers before Wittgenstein (Hegel especially) created a philosophical atmosphere in which it was acceptable to create large metaphysical constructions such as the proletarian state or the third Reich. Popper among the other liberal thinkers devoted significant part of their academic work to show that communism and fascism were founded on metaphysical constructions that could not deliver the dream they promised.
You are right about Popper (other commentators mention him too), but he's the exception