I'm another who isn't especially subject to the need for my great great grandchildren to enjoy the planet. They'll get the planet humanity collectively deserves, and right now that's a poor one.
You only need to read some threads to hear the pitifully stupid responses about consumption, "Mind your own business", "How does it affect you if I shower twice a day and replace my bedding weekly because I'm too precious to withstand perfectly normal human secretions" yadda yadda.
Humanity has a few bright individuals who've dragged the rest into civilisation, to find that they're too civilised, and will happily destroy the planet in their pursuit of naice things and smelling 'fresh'.
I think we'll leave interesting archaeology for some future species to interpret. (this is another reason I'm blase about the eradication of humans - whilst we're the apex predator, there will be no interesting evolutions on the grand scale of the past - the planet will move on, and maybe the future will bring sabre toothed pandas or the octocat).