Flying over somewhere is not the same as walking it, or even passing through it on a train.
There is nothing we can do that will kill all life on Earth. We are simply not that powerful.
As a race, we've been through Ice Ages that have seen most of the world covered in ice, and a narrow strip of habitable land around the equator. We survived all that with no technology to help us. Twice. We'll cope.
Catch the Trans-Siberian. Or the Indian-Pacific for that matter. Watch as thousands of kilometers of untouched wilderness roll by.
Visit some really poor countries and see the happiest people you've ever met living without technology.
See the ruins of vast ancient temple complexes, remains of entire civilisations that are now just tourist traps.
The world will go on without us.