They win because they own the airwaves.
Here in Mesa County (CO) we occasionally fantasize about having some sort of local "non-progressive" news medium that would be an alternative to the local paper and the mostly useless local TV stations. One guy has even bought and reserved a couple of suitable internet domain names for this purpose.
Nothing ever becomes of it because the non-progressives are divided into several camps with different (and sometimes conflicting) aims and that don't have enough in common to hold a movement together.
It is amazing to me that the "other side" has somehow solved this problem. Radical Muslims and radical feminists/gays, white limosine liberals and black supremacists, labor unionists and the cheap labor express—somehow they have learned to march as a family. Sun-Tzu says the army that marches as a family cannot be defeated.