I feel the power of that moment is severely undercut by the fact that he's addressing the leaders of other countries, when he's obviously talking about America.
Lets call it like it is: They chickened out.
He is addressing the leaders of the GRC, who may or may not have more power than the leaders of nations, and he is talking about a global refugee crisis, something parts of the real world have been dealing with too. In the MCU, these are refugees of all races and ethnicities and religions because of the return Blip, not just a single one. The race and bias stuff dealt with by the show are totally different from what the GRC is doing and I did not think his big speech was directly about that.