No one “pretends” the G20 countries are the top economies, they are, this is a fact. Your categorization of aid is woefully short sighted. Even conservatives know the value foreign aid brings for American interests, and yes it is a necessary part of the multilateral effort to reduce carbon emissions. Trump is not leading anything, he is isolating the country and giving up America’s position as a the guarantor of freedom and democracy. I’d say that’s not very presidential, not to mention un-American.