We have way too much hubris about how we're going about life. Acting like we own nature, and we aren't actually a part of the ecosystem. And we have an existential crisis with climate change on our hands, and we're basically doing fuck all about it.
In fact, we are increasing oil production in many places right now. Probably the dumbest thing people will look back on when there's no more oil and climate change is in full swing. Why didn't we try harder to change course when we had a chance?
Yeah I don't disagree. But people are also pretty adaptable, I think we can survive some pretty apocalyptic stuff. (That doesn't mean we shouldn't do everything we can to stop climate change, I just think it's pretty likely at least two people will survive)
Humans have almost gone extinct several times in our history. What makes you think we are special? Species go extinct all the time, just not usually by their own hands.
Reality doesn't include the ability to upload ourselves yet though, so I base my enthusiasm on what could be, rather than a cynical assessment of what is. You do you though.