Man, if he sets a goal, can destroy life altogether. Hopefully this will not happen until some bacteria remain.

Not just bacteria. The experience of the reserve "Chernobyl" is more than optimistic in the forecast. The conclusion is simple: better with radiation than with humans. These people are frightened by three-eyed rabbits and two-headed rabbits. And Mother Nature can easily cope with these deviations. Destroy all life on continents? and what? Have you forgotten where life came from? Nature to all this radiation together with the human race - and from the high bell.
It seems that for Life, the emergence of the Mind is like a watermelon. It is easy - there is immunity. And hence the sad conclusion: we are not the first in Life.