Perhaps the politicization stems from higher stakes in FCC votes which in turn have stimulated greater interest in the outcome. But politicization stands as a cause if and only if a specific political party clearly holds one perspective largely opposite that of the other party. Don’t both parties support competition? They do, but a dichotomy might arise if the Democrats readily welcome government initiatives to promote competition and the Republicans consider competition most potent when government opts out.
At first blush the role of government can support a Democratic/Republican dichotomy, but it does not always play out. Teddy Roosevelt made it his mission to bust up monopolies and this Republican “tradition” extended into the early 1970s when the Nixon Administration filed suit against the AT&T monopoly. Democratic FCC Commissioners regularly vote in favor of market concentrating, competition reducing horizontal mergers