Where in your graph does it parse out pro- versus anti-postings regarding any of those candidates? Allow me to provide an example - I’ve posted many more comments on FB regarding R-U-N Paul than I have all the other candidates combined, albeit negative comments each and every one made regarding R-U-N Paul. Thus, the graph is meaningless drivel.
I can only imagine how many people have de-friended you. Political Facebook posts are about the most annoying thing on the web.