He regularly donates to the Democrats, and reportedly gave $1m to the Obama reelection campaign, as well as endorsing Hilary and donating against Trump and has supported Bernie Sanders both against Hilary and in the recent Democratic primaries.
It's not really the elephant in the room is it, we have been projecting population growth for many years. The issue is how to tackle it short of forging a gauntlet and collecting all 6 infinity stones.
Most developed economies have negative birth rates, the UK is 1.79, so our population will...