That is not always the case. If they have industries that depend on the cold, they may not wish it warmer. If their livelihood depends on glaciers that retreat

That is not always the case. If they have industries that depend on the cold, they may not wish it warmer. If their livelihood depends on glaciers that retreat they may not wish it warmer. If they depend on animal life that would migrate or go extinct, they may not like it. If they are on the coast that will end up flooded, they may not like it. It is probably the case that there will be some people who "win" a bit as the planet warms, but on the whole I'm not sure anyone will be entirely better off for it in the long run.