Capitalism is destroying the planet. That's hardly a net positive. In fact it's the worst thing possible. There is nothing humans are even theoretically capable of that is worse.
What is the suggested alternative to a market economy? Command economies aren't what I would consider better for the globe. Energy intensity per unit of labor is almost universally lower in market economies than it is in command economies.
There is no alternative unless we magically have free energy. The only way out of this is to colonize the solar system, galaxy. At that point the Earth's status as a habitable planet will hardly matter.
Worst thing possible? Really? That's a simpleton's view about existence. Countless planets die every day. I only care about the next 20 years I'm going to be alive for. I don't care about the planet or the survival of your children. Don't force responsibility on me.
