You're complaining now that the US uses its veto? I should hope so! We should be a lot more obstructionist than we are. Putting a stop to the more egregious UN silliness is our job, as I see it.
As far as the rest of the world subsidizing our debt, that's true. Of course, they do it at market rates and it's historically a very good investment. No foreigner is investing in the US to lose money. To the contrary.