And I don't want to derail the topic, but of course random mutations+inheritable traits+Natural Selection does not automatically, enable the possibility that microbes can become elephants.
In a way, it most certainly does.
With some reasonable adjustment in understanding your statement is quite wrong.
There is nothing that negates modern microbes spawning an evolution resulting in some multi-cellular creature that may, in some aspects, resemble an elephant in the next billion years or so, is there? I will agree that it is not automatic but I would argue it is well within the realm of probability. So, yes, random mutation+inheritable traits+Natural Selection does indeed enable such a possibility, though the outcome will certainly not be elephants. That's already been done by some microbes from a billion years ago. The modern kind will have to go make something else.