Fair enoughski. What do you believe?
Getting back here late (busy week) but to answer your question.... I'm incapable of religious faith so I'm not sure if 'believe' is the right word, but according to my experience and powers of observation
evolution (and the selection pressure of majority values) the former is about part of what makes different human groups different (on average)
different environments reward different behaviors (places with cold winters favored those who could think ahead, while physical robustness wasn't much of an advantage) places with lots of endemic disease favor those who display robust vigor (and planning ahead isn't rewarded or often possible at all).
the latter isn't about reproduction but about what types of behavior are rewarded or punished in different socieites. Being a free thinker in a conformist society wont' get you anywhere while being a conformist in a society that values innovation is also a dead end.
It's not a contradiction for me to say that all human beings deserve dignity and respect and to point out that putting people from very different physical and social environments in the same place (with no new ethos to assimilate to) is.... not a good idea.
genetic research is showing that groups of people (on average) differ far more biologically than is comfortable for the old Disney exhibit "It's a small world" and the differences are baked in and not amenable to well-intentioned government interventions....