The left’s idea to just roll back all modernity and live in imagined harmony with the planet will not sustain 7 billion people. Nor will it sustain even a billion.
The problem is — at least one of them — is that no one has any good or workable ideas. Some are better than others but all of them are fairly terrible. I also don’t have any good ideas, but I know what the left is proposing won’t work, in any of its incarnations, and the right’s pseudo-proposals are even worse still.