Monism is remarkably similar to the present-day greenie movement. However, it differs markedly in one respect. Monism wanted to encourage the countryside vs city life, whereas our current eco-fascists want to move everybody into cities.
The environmental elites will live in the countryside and make the rest of us non-fortunate people live in the city ghettoes. They have not given up on this idea. They just want to get everyday people out of the country and pack them into the cities. This is called Smart growth today.