I'm just an average Joe trying to understand the context through the simplest explanation.
When I read World Map of Dominant Y-DNA haplogroups distribution, it echoes "differences among human". But then I recall that all humans are genetically more than 99% the same.
For example I remember reading a research paper that said the genetic difference between northern kalahari bushmen (A dominant) and southern ones are much greater than between chinese (O dominant) and french (R dominant), which is not reflected in "haplogroup pie chart" of aforementioned world map.
How to put this haplogroup diversity in the context of "we are 99% the same"? Is haplogroup diversity within the < 1% difference?
I think the map is this one https://www.pinterest.at/pin/136585801178324969/
the bushmen article is from one of paper from https://www.ncbi.nlm.nih.gov but I forgot which