Indeed.
Maybe once day, aliens will drop by and discover what remains of humanity. And stories will be told of how, when the time came, our species decided to bury its head in the sand and hope the problem would go away. Or maybe that we attempted to create god to come rescue us.
Life imitates art. We refused to listen to the scientists.
Why do you think aliens will drop by? If aliens were visiting every planet in the universe, don't you think we would have noticed that by now? I mean, why didn't they visit the solar system and colonize it (and everywhere else) aeons ago?
Someone has to be the first.
So, your theory is aliens are abundant, but by extreme coincidence we're first?
We haven't visited any other planets so we're not the first either.