You can find differences between sexes / races / ethnicity, and I think it would be foolish to argue that there are no differences. I think it would be foolish to argue however environment and other factors are no influence either. Pulling apart which influences what is rather tricky, I think.

One note I can think of, using your running analogy: focusing on the natural abilities at the very top of the echelon (or even just the pinpoint average) may ignore the massive spread of ability among the general population. Men are naturally going to typically be faster runners than women (larger heart sizes and stronger muscle density -- testosterone traits, in essence). However (and you can look at any mass-participation 5K to verify this), this ignores the wide spread. It is safe to say that your top male athlete will almost always outrun your top female athlete. I think it is also safe to say that a woman who extensively trains will almost always be able to outrun any man who simply shows up at a running event with zero training at all. Certainly there are differences in non-physical aptitude between the sexes, too; however, I also can imagine that there's a wide spread of innate ability here, too, with training also as a differential factor.

I don't think pondering the idea should be some sort of heretical thing, no, but especially with this subject, you have to be careful. I think part of the reason there's a large amount of discomfort about this is part historical example (eg eugenics). If the conclusion drifts into "inferiority / superiority" angles, it can be used by powerful people to exploit tribalism to do awful things.

So your points can be summarised as: there are very few innate differences between men and women, and any differences are far less significant than environmental factors, and anyway you are not allowed to discuss them because human beings are so primitive that if we do find differences we risk a holocaust. This reads to me like a fairly standard rebuttal from the left wing/feminist school.

Here's an example of a measure of male strength where virtually no women are stronger than men: https://www.reddit.com/r/dataisbeautiful/comments/4vcxd0/alm...

The idea that all races and sexes have the same potential is not borne out by the facts. Nature is important. It's comforting and fashionable yet intellectually soft minded to blame it all on the patriarchy or imperialism. All the diversity programmes in the world can't change nature. Nothing should be out if bounds for discussion. In the nicest possible way, if I am not trying to harm people or encourage anyone else to do so, who the hell are you or anyone else to tell me what to say or think?

I don't think you read what I wrote, unfortunately.

Yes, on the topic you selected, grip strength, almost all men are going to be stronger than any women.

To go back to running though. You missed for instance where I said "men are naturally going to typically faster runners than men", which also is true. If you look at this large dataset of compiled 5K pace times, (http://www.pace-calculator.com/5k-pace-comparison.php), you will see that men have a very distinct advantage at all levels (usually a minute and a half pace difference on average).

But you cannot say "almost all men are going to run faster than women", due to the wide spread of pace. There are a significant amount of women capable of an 8 minute / mile pace; this pace is faster than the male average 5K pace at any age.

Nature is important; so is environmental factors. By mentioning that environmental factors exist, I am not dismissive of biological differences. I do think particularly on things like personality, intelligence, and other non-physical traits, it is fairly difficult to pick out what causes what. Testosterone / estrogen traits are fairly easy, we can see the results. Debugging the brain on the other hand is a lot harder.

I did not mention patriarchy or imperialism or feminism. I mention eugenics and tribalism because of the sordid history of this sort of thing; it's a serious warning flag to not rush to conclusion. You can say what you want and think what you want, but I personally would not take any person who does not recognize this warning flag very seriously, to be honest.

In theory, nothing should be out of bounds; in practice, this type of conversation easily degrades into tribalism, which yes I believe human beings are very prone to. (I mean, why else bring up feminism / left wing / patriarchy / imperialism? I didn't mention any of this.) That's not to say "don't discuss this", but I'm not going to say anything else if bringing up the fact that environmental factors exist turns me into some sort of left-wing caricature. :)