In the world where machines create, and resources are spent to make them an improved version of the humans ( lol) the humans become obsolete.

It's already happening. I read sci-fictions and speculations and there's a lot of sense in them, you're tempted to buy 100% into it. Maybe it's the mix of faction or whatever, but like you hinted, what was merely an idea decades ago, is now in fact being realised.