They don't propose renaming all american birds, just those named after white people. Do you seriously need to make clickbait titles even on birdforum?
Personally I have noticed this weird tendency to have bird names in English after people and not the birds themselves a long time ago and consider it absurd. Does everything need to be a little memorial to someone? In Czech, there are a few similar outliers, but most birds are named after some feature of theirs, which is muchore logical. Moreover, that's also more likely to be stable in time.
I am not personally bothered by the fact that the names come from "white people", but having a bird named after a confederate general is outrageous and that really needs to be changed. We have also removed all references to Stalin from all our naming systems .