What's he worried about? He'll be dead before anything worse than Mexicans becoming the majority "ethnic" group in California happens. For that matter I will be too. I don't give a rip. Actually, the earf could stand to be a few degrees warmer anyway as far as I'm concerned. I was in Lewistown, Montana in November - and minus 30 is tropical compared to what it is 100 miles north of there.
Just bring it!