Do whites naturally have more empathy due to evolutionary pressures needed to domesticate dogs? Dogs were long-range sensor modules for prehistoric hunters, their sense of smell made tracking prey much easier. So did white people evolve to be more loving with the evolutionary pressure of needing to get along with dogs? Tribes that hit dogs or didn't invite them into their camps and give them treats would naturally have been selected out.
Are other human evolutionary offshoots lacking in empathy because they never domesticated dogs in prehistory?
It's just K-selection, OP. Let's not overthink this.