Not at all, a bacteria today has evolved the same amount of time as us, billions of years. And has shorter reproductive span so has an immense amount of evoluti

Not at all, a bacteria today has evolved the same amount of time as us, billions of years. And has shorter reproductive span so has an immense amount of evolution built in to optimize it for not just myriad environments they are in today but also robustness to handle billions of years of changing environments. A bacterium of a billion years ago would not survive many niches if any. Anything alive today is incredibly complex and efficient in its ability to survive especially with so many eukaryotic and human predators.