Reality: What's true is true and can't be negotiated or ignored.
Survival: Every citizen needs to meet their physiological needs now and in the future: Air. Water. Food. Thermoregulation. This is not negotiable. The alternative is lethal.
Freedom: Once we have confidence in our immediate survival, we want to be free to do what we want.
Embrace reality. Survival and freedom for all. Any defensible governance model must champion those principles both at home and abroad.
Survival trumps freedom. Your right to survive supersedes everyone else's freedom to kill you. Your right to drink clean water and breathe clean air supersedes everyone else's freedom to pollute it.
You get the moral authority to these rights by affording them to others.
With reality, survival and freedom you can derive the rest.
Ecology: Protect the ability of the world to meet our physiological needs, so we can survive in perpetuity.
Science: Learn how the world works so we can ensure it continues to meet our needs.
Rules: We ensure our freedom by protecting the freedoms of all. This can mean restricting individual freedoms to achieve broader objectives: Drive on the right. Stop at stop signs. Don't steal. Pay your taxes. That sort of thing.
We cheerfully forfeit our 'freedom' to drive on the left so that we can all get where we're going.
The rest of politics is ideology and posturing. It's pretty wide open, but any governing body that violates these principles loses its moral authority to govern.