Thinking about it, it really is a form of political darwinism.
People who are so stupid that they blindly vote green just because it exists on the ballot, without actually looking at the candidates to see if they actually follow the party's principles probably deserve what they get.
The people who are complaining about this are, essentially, saying, "We want our stupid constituents back! No fair putting up a decoy that so obviously fake that a baby could see it for what it is!"