Yes, based on the litmus test of the recent lack of global cooperation in managing climate change, we can expect developed countries to look after their own cit

Yes, based on the litmus test of the recent lack of global cooperation in managing climate change, we can expect developed countries to look after their own citizens only, using their militaries to steal all available food from less developed countries. Immigration-based countries such as the U.S. will be better positioned to convince their citizen base that they owe nothing to other countries peoples by presenting their own population as "representative of the world's ethnic balance", and even as "the subset of the world that God wants to save". Expect to hear "the United States is the Ark of Noah for this day and age" broadcast on U.S. televisions as drone robots march through the Brahmaputra harvesting rice for loading onto ships destined for the U.S. as the local population starve. The leaders of developing nations with nukes such as Russia and India will be given U.S. citizenship en mass, Roman Empire style, in return for control over those weapons. English-language testing will be canceled for Chinese students wanting to study in the U.S., who'll be distributed around colleges in cities all over the U.S. to discourage their parents launching Chinese nukes at them.