You're right. Also, not much space is needed to house people. Everyone can just start living in coffins with breathing tubes. It's so efficient, that when you die they can just wheel you into a hole in the ground and be done with it.
Seriously? You're comparing eating a diet that consists of less dairy & meat and throwing less food away as waste, to living in a coffin? This is not productive at all.
Totally. I much prefer my oversized mobile coffin, sporting conditioned air and a banging infotainment system, ferrying me to and fro, to the stationary coffin conveniently located in a central location.
