Are you also opposed to Google and Facebook exercising editorial control of content as a First Amendment right? If not, why should some natural monopolies (e.g. search engines or social networks) get this privilege while others (e.g. ISPs) do not?
I can't just ignore the two or so providers of internet in my area and switch to dial up or whatever because I pretty much need high speed dependable internet for work. I think that's a pretty big difference there.