You're badly misinformed if you think the left has a stranglehold on American media; the same majority shareholders also own big stakes in America's Fortune 500 and they're mostly right wingers, with political views even more extreme than working class conservatives.
Every one of those are assertions I've read in several places, backed up by studied and interviews.
The sad fact is that the vast majority of righties in this country don't do shit for political homework; those who do generally stop voting for conservative candidates.