This party would have no leader. It would be mostly written ideology and laws with computer software/hardware and maybe an initial setup crew. The main idea of it is to unite earth and spread its populations into space to ensure all of different populations’ survival.
Create an earth fund that would give 100% of its profits towards eliminating all the hardships of the world, such as hunger. All countries would be invited to donate into this fund. The fund would be created in a way that no one would have access to it and was secure of fraud.
Incorporate Earth into the titles of our country (i.e. Ottawa, Ontario, Canada, Earth). This is to show that everyone has the commonality of citizen of earth and we should unite everyone’s efforts towards its welfare and/or its populations’ welfare.
Develop artificial earths in space that are in somewhat spaceship form... -the webpage link is an example of what the ship could look like.
This way we don’t have to invasively change mars (or other planets) to suit earth’s population and possibly destroy it with our current bad habits. We could also have multiply spaceship artificial earths that are mobile this way. Once everything is self sufficient and everyone is comfortable; one the multiply earths (i.e. earth14) could go off exploring.
This is of course just an idea at the moment. If interest is show more efforts maybe put forth. Some other quick details are: no house of commons or all that stuff (this is a completely new system), work towards putting smiles on the entire earth population including the natives of Canada with whatever changes are needed, etc.