You are more likely to be libertarian. At least if the James Lindgren paper cited by Tyler Cowen says what I think it does. Apparently, the phrase "angry left" contains a redundancy.
I find this a plausible story. David Henderson points out that people on the left will complain about lack of choice in media and point to Fox News as an example. When he suggests that there are many other news outlets, the reply is "But some people only watch Fox News!" He concludes that the issue is not choice in media, but that people on the left are angry with other people's choices.