Ha ha, no. In a million years, mankind would have paved the entire planet’s surface, including the oceans. Our numbers would be in the hundred billions and most will live underground. The few elites would live on the uppermost levels and even have real gardens and plants. Wildlife would be extinct, save for a few robotic simulacra in the Imperial Zoo. Ironically, you would have to go to the Outer Colonies to see some animals that are extinct on Terra.

An asteroid hit the earth and blanketed it in ash for ten thousand years, a force many times bigger than all the nukes humanity could ever hope to build, and life still thrived eons later. The Earth and nature doesn’t need saving, we need saving.

Don’t forget that we’re still apart of the ecosystem and “nature” and subject to every single one of its laws, including the biggest one: adapt or die.

life still thrived eons later

After a several million year reset period, sure.