The Importance of Empiric Theory

Popper cared so much about the boundary between empirical scientific theories and metaphysical theories. Darwin's theory of evolution got stronger over time because it went from being barely if at all empirically testable to a strongly empirically-testable theory as we learn more. It becomes more ways in which you could theoretically refute it. For all of the pushback I've received our recuavoration from online critical rationalists, none of them have ever argued to me that we shouldn't make our theories more testable and more empirical. They've made sometimes argue they have a better theory that's not empirical with maybe a few exceptions.