Why should there be, in the aggregate? There is no plague, no famine, no pandemic, no meteor strike, no huge volcanism...
What exactly is bad, that is not an externality? Of course we are killing the planet, the end is nearer every day—but that is external to the market as long as we have oil, and we do—and we will for your lifetime.
Even at that, necessity means opportunity, and opportunity is the potential for growth.
You have trillions sitting on the sidelines. The market has consistently returned 10 or 11% annually for the last 110 years. No other investment comes close. Why would anyone invest in anything else?