I didn't say it's "laughable to use the country's income" (for the basis). . .I said 'painting the US as not paying its
fairshare is laughable.' . . .it fits with your comment; "1) I'm glad paying over money doesn't buy votes" . . .the implication of no quid pro quo.
So then, just what
fairshare obligation does the US have, to compete, on a per capita basis, with other countries? Were is it written that the US must give in accordance with this new contrived standard?
It's not enough that we give more in total?
There is also the question of targeted aid. Something like, giving refrigerators to Eskimos isn't exactly giving aid . . . though if your a country that has a bunch of extra refrigerators, and a boat going near some "needy Eskimos", well. . .

BTW, have I ever mentioned that I worked for a non-profit World aid NGO? . . .I do know a little about the topic.
I still want to know why NZ is hoarding all those sheep (disproportionately) . . with all the polygamy in the middle east, there are an awful lot of lonely men there.