It’s not going to work. For every person that hears the calls to boycott and acts on it, ten others won’t. For every person that hears the calls to boycott, ten others won’t hear that call at all. The only viable way of cutting into CoD in my opinion is to give people an alternative to play.
I bet you could argue in court that the EULA is null and void, because you can’t be reasonably expected to copy that link into a browser to read it