I consider myself pretty left learning. I don't like him, but I would never sign a petition to get rid of him, I just don't watch or listen to him. I know plenty of people do like him and that's fair enough - things would be pretty boring if everyone had the same opinion.
People who make a lot of noise on social media like to think they are representative of the population simply because they got a lot of likes, retweets or signing of petitions. Some opinions in this thread seem to suggest that people who are left leaning automatically support ridiculous social media campaigns like this which is definitely not me.