I guess I wasn't clear: I'm aware there are people who think that the choice doesn't really matter. That's very different than people literally being blocked from appearing on the ballots at all (which some people in sibling comments have cited some references to I'll need to look into more), and even that's different from them refusing to count votes and declare a winner if they did actually receive the most votes but don't fit the status quo.

As far as the one real-world example you gave goes, I'm not convinced that someone who feels the need to avoid making definitive statements about whether vaccines cause autism is a great example of someone who wants to effect meaningful change rather than play the politics game, but that's mostly an orthogonal point.