When you expose radical feminism to the disinfecting sunlight of the world's gaze, then at least in theory you kill it. And you kill the rest of feminism too. For the moderate feminisms owe their existence to the existence of radical feminism. Radical feminism is the driving element which keeps ALL of feminism dynamic. Subtract radical feminism and the rest of feminism would grow anemic and devoid of purpose, and eventually fade away.
This throws an instructive light on the cliché that "not all feminists are like that". You see, it is not even necessary for all feminists to be "like that", provided only that some feminists are. That is all it takes. Feminism as a whole plows its destructive furrow through the world by the combined work of all feminists -- even the moderate ones. But the radicals are the real powerhouse, willing to drive the venture toward unthinkable frontiers. The moderates, whether they admit it or not, serve mainly for camouflage because no matter how far the radicals push the envelope, they will always seem comparatively reasonable -- the "good cops" in that timeless game.
Understand, the moderate feminists are not much about pushing the envelope. That is what the radicals do. But when the envelope indeed gets pushed, the moderates can always be counted on to fill up the space which the pushy radicals have opened for them. The mainstream is always migrating in a more radical direction, and so the future of liberal feminism is always radical.