Well until we get rid of first past the post, they have zero chance as a third party. Their only real chance would be to primary with the major party that they most align with.

Also, just because you can find one or two examples of green party candidates, does not mean that they are a real party. There is more to a political party than just allowing a person to use your party's name while campaigning.

We need a real, grassroots, progressive party. The Green Party could clean up their act and become a serious party, and they'd still be shit because the name carries so much baggage. There are a whole lot of people who have been burned and will never vote Green Party again for the rest of their lives. Everyone would be better off with a new party.