i sympathize with some parts of your position, but first of all i'm not a leftist. i'm a moderate who's been horrified by the recent transformations of the GOP. i gave up TV too, about three years ago and i don't miss it. there is a strong liberal bias in most of the major networks and i'm sure that's motivated by profit. that's not why i gave it up. i just didn't see much value in it.
the starting point for any reconciliation, or at least depolarization, of left and right has to come by understanding why both sides are getting more extreme in their views. unfortunately, what gets advertised by all media is the views and actions, not the basis of the increasing extremism.