I think you've misunderstood - what I said was that the US being the "paragon" of humanitarian aid doesn't excuse the crimes they have committed, much as Yemen's agreement to aid colombia in this should not mean we overlook their history of human rights abuses.

by simply committing far less evil than the rest

So you do agree that they're doing evil things. But you're willing to overlook them, because in your eyes they are doing less of it than other people. While I doubt the strict accuracy of that claim (yemen does a lot of human rights violations and there are many other countries that simply do not have the population to compete with them in volume), I am glad we can agree that their doing good things does not negate the evils they also commit.