Right-Wing Commentators and the Problem of Decorum
In his novel Empire of Lies (which you can pick up while you're buying If We Survive), the very wise and extraordinarily attractive author has one of his characters declare that, "In an empire of lies, only a crazy man would speak the truth." The character then goes on to explain that the empire can then destroy the crazy man, not for the truth he speaks, but for doing the crazy things that crazy people do.
Ann and Rush, Sean and Glenn aren't crazy, but the sort of person willing to hurl himself against the vast machinery of the left-wing information empire is not likely to be all that concerned about decorum. This puts a weapon of slander in the hands of the left-wing media and they use it effectively to demonize these truth-tellers and stopper the ears of those who might hear them and be convinced.
It's easy to be calm and polite when you have the power to destroy the reputations of your enemies — it's a lot tougher for the rebel brave enough to fight back.