There is no good thing in the world that will be made more abundant, or spread more widely, by global warming. The list of the bad things that will proliferate is innumerable.
If the planet reaches three or four or five degress of warming, the world will be convulsed with human suffering at such a scale - so many million refugees, half again as many wars, droughts and famines, and economic growth made impossible on so much of the planet - that its citizens will have difficulty regarding the recent past as a course of progress or even a phase in a cycle, or in fact anything but a true and substantial reverse.