I do agree about it not inherently being a problem that needs to be medicated. I personally only use meds when I need to be more “normal” and cut through the fog that daily life and tasks seems to generate for me. Sometimes I will develop a backlog of tasks and it’s helpful to cut through it.
I get the feeling that I was born in the wrong place at the wrong time, so to speak. It seems ADHD is present but much more tolerated in some cultures such that it doesn’t cause the person with ADHD as much stress or anxiety as they grow older. Like you suggest, these people are just people and though they’re different in some ways, it’s still within the bounds of normality.
It seems to be once you put ADHD brains into uncomfortable environments that it becomes problematic. Otherwise there is plenty of potential for it to be advantageous in many ways.
The idea that ADHD is some abberant way of being that ought to be medicated into a teleological more ideal way of mental being is also, completely, a human construction - you can't get that conclusion just by looking at brain blood flow or anything like that.