Considering that Fox's ratings are more than the other two combined, you're probably right.
Which is not to confuse, btw, really conservative Americans with "rightists" in the classical sense -- fascists and phalangists -- who probably don't have anything to read or agree with anywhere except perhaps Europa.com and Stormfront.
U.S. conservatives are "paleocons" not phalangists. Paleocons are anti-statist, along the lines of the late Murray Rothbard, who once called Wm. F. Buckley, Jr., a "totalitarian" for having made his peace with the idea that keeping our independence in the face of Soviet expansionism meant having to accept a large Defense Department and "military-industrial complex".