My surprise that this acronym is even a thing aside, do you actually buy this?

Even if you do, the right pretty obviously doesn't agree, and you don't have to look far for evidence. If they wouldn't feel like they're represented unfairly in the MSM, they wouldn't keep complaining about fake news and the MSM in general.

Talk radio and the Murdoch empire are a large part of the MSM.

You have basically just repeated your previous point.