Do they mean to say deport themselves? Isn't America a land of immigrants essentially at this point?

I bet many of these folks have have Irish ancestors who escaped poverty and the famine. That's like telling people to go back to their poverty-stricken land. Which is impossible considering that climate-change is only creating economic disasters many developing countries.

I say this and will say it again: there are no such thing as illegal immigrants anymore in the face of climate-change.