It does if there are enough nitpicks showing that natural behaviors are becoming more accepted because they are natural. That isn't to say they are acceptable, but they are more accepted. And this doesn't have to be true of all behaviors, because there are many factors at play. It is even possible there could be a trend where behaviors are becoming more acceptable because they are natural even if all behaviors were becoming less acceptable, if there was another stronger force acting to make all behaviors less acceptable.
But if we want to get to the actual argument first presented, we would have to realize that comparing it to murder, adultery, or sexual assault is a strawman to begin with. The OP wasn't defending going around and murdering people who didn't look like you. They were saying that millions of years of evolution will influence our behaviors in small ways. It would be compared to other preferences, such as preferences in intimate partners. So, is wanting to have a specific gender, race, etc. in an intimate partner wrong? Is it socially unacceptable?
And for murder, that can be a bit of a tautology as socially unacceptable killing is murder and anything else isn't considered on the same level as murder. But if we consider killing that isn't considered murder and if you consider forms of killing that, if not legal, are punished lighter than murder, it becomes clear that our society does allow some forms of killing others.