There is likely no one single way anyone is born the way they are born.
I support evolutionary process, and evolution is not a slow steady roll of the dice over and over just waiting for mutations to just randomly happen.
Humans only exist because mother nature has to our limited knowledge, tried to eliminate all life on this planet 11 times that we can point to.
11 times, so much life was brutally and violently obliterated, and then something took advantage of nothing better than just not dying.
We didn't end up here from a long boring process of uninterrupted slow tedious change.
Right now our species is stomping around the planet trashing it here and polluting it there. That isn't going to have NO effect, even if we don't appear to have the observational skill to actually get the details 100% correct.
How much of my being born like this, is as a result of blind stupidity on the part of our species eh? We saturate our food and water and air will a lot of really dumb things. It's not having NO effect.
Am I an evolutionary step in the scheme of life?
I'm sure not some twisted notion of some imaginary evil being trying to screw up life for a batch of humanity in love with some old ideas of how we all got here.
I am not just some boring biology that is hard to explain.
I've read rather startling things medical science can do these days. Maybe in 100 years a person will be able to just plain pick the body they want to have the way they buy a car or house.
One thing that will never change though, people will continue to hate change.