The case for linguistic innovation is this: We need a word that captures and conjoins the meanings of refutation and repudiation. And we need it now. To save the country from the ravages of contemporary liberalism, we have to refute liberal arguments and see liberal politicians repudiated at the polls.
So the conservative agenda is, in a word, refudiation. Indeed, given the dramatic moment at which we have arrived, one might say that we now have the prospect of a grand refudiation of liberalism.
This is exactly how you do battle with progressives: on their own turf. And better than they do.
Cross-posted at Potluck.