Every food-stuff solution is a problem with a perpetually growing population, as encroaching on land and increasing use of resources is certain. In fact every person represents a carbon footprint and that extends beyond just food, but everything they consume, all the infrastructure they use. That is the unsustainable part of the equation. Strangely the mainstream view is shifting away from the GDP as the cradle of economic prosperity, and yet, policy is still to double-down on growth.
The only way to reliably (and amicably) decimate global population growth, and therefore growth in the West, is eliminating global poverty and allowing universal access to contraceptives everywhere. If you achieve this, it doesn't matter what people eat or do; and arguably, it only matters currently in terms of how it impacts the pace of environmental destruction, not whether or not it gets destroyed.
It just doesn't get into peoples heads that more converts to green slime will not save the world.
The only way to reliably (and amicably) decimate global population growth, and therefore growth in the West, is eliminating global poverty and allowing universal access to contraceptives everywhere. If you achieve this, it doesn't matter what people eat or do; and arguably, it only matters currently in terms of how it impacts the pace of environmental destruction, not whether or not it gets destroyed.
It just doesn't get into peoples heads that more converts to green slime will not save the world.