Mind your own business...
We tried giving others our liberty, and it's not working. We should focus on preserving (or, more specifically, regaining) our own liberty.
The united states should stop getting involved in the world's affairs!
The United States should finish the wars we're in now, we've put in too much to lose, sacrifices would be in vain. Afterwards, DON'T GET INVOLVED, it's not our business unless we are provoked.
America is not the guardian angel of the world. We have the UN for that.