No. All I'm implying is that humanity, in its current form, cannot survive all possible natural threats to its existence. We're still competing with other species, and we're still vulnerable to things like the effects of climate change, so if we completely stop evolving, it's likely that in only a few thousand years, we'll be completely dependent on our technology for survival.
I would be very surprised and disappointed if our technological processes in a mere hundred years are not more robust and better than evolutionary equivalents--indeed we can already do many things evolution could never do itself, the last big step is doing that more on the micro scale. Work on that has already begun, it's pretty exciting to look at it. E. glowli is just the very beginning.
Again, that's not how it works - dinosaurs didn't evolve to be meteor resistant, and carrying on evolving could as well lead to our extinction as to our saving, or indeed to our losing intelligence and becoming a niche species again.
And that's aside from the fact that even with technological immortality, we'd still have people dieing and being created, and evolution will still be happening - it can't not-happen.