I feel you. I’m 6’4" and the biggest hurdle is pants and shirt length. Unless they have tall sizes all shirts become halter tops if I even slightly raise my arms.
Pants are a pain in the ass too because I need at least 34" length for them to not be capris on me. Most companies just make all their pants 32".
There is a reason 90% of my clothing has come from Eddie Bauer for the last 15 years. I’m not particularly brand loyal. They just make clothes that fit me, and most companies don’t.
It’s important to think about the time scale that evolution works on. These changes happened very slowly 50,000+ years ago.
The regions near the equator where people still tend to be lighter skinned have been in contact with and interbreeding with lighter skinned people for thousands of years, plus many migrations and invasions.over the past 10,000 years.