Humanity has wiped out 60% of animals since 1970, major report finds

Most people won't hear of it of course. Of those who do, many will dismiss it as green/left/socialist propaganda. Of the small remainder who become scared, most will feed themselves the standard superstitious pap that some tractable technocratic fix (perhaps YC-funded) will surely arise, because of course it is the Destiny of "Mankind" to prevail and prosper Into The Future.

That our contemporary form of life is increasingly incompatible with the earth's complex living systems will occur only to a tiny rump, who will get depressed, or if perhaps they're fortunate, become vagabonds.