More then one way to engineer a die off.

The Mexican government by forcing tens of millions of their least productive citizens into the US, has in fact engineered a significant die off as far as they are concerned simply by shifting the burden to us.

The Cuban professor surely is aware of Cuba basically shipping their whole prison population to Florida. And he probably is aware that all these things can be reversed.

Two words:

Hydraulic Empire.

Thanks for playing, come again.