I would say that sovereign countries have the right to determine their own policies. If by "We" you mean the United States we are a massive loser in treaties, w

I would say that sovereign countries have the right to determine their own policies. If by "We" you mean the United States we are a massive loser in treaties, we give away much much more than we get. We exert power by having a military 10 times as large as anyone else (and mostly that large by virtue of saving the western world from a Nazi dictatorship) but that margin will cease to exist within the decade and Nazi China will have the worlds largest military and exert the most power and the world will be MUCH worse for it.