Take a tribe made of 10 men and 10 women, each women give birth to 4 kids during their life. You need 8 people for a very dangerous task. Are you going to send men or women? If you send 8 men and they all die, you are left with 10 women and 2 men. The two men can impregnate all the women and you have 40 kids for the next generation. The tribe will soon recover. On the other hand if 8 women die, there will be only 8 kids for the next generation, which is a much bigger hit.
That women are more risk adverse is only natural, and it is indeed the case. In fact, it maye be the most significant non-physical difference between men and women.
As for women possibly being better saturation divers, I don't know. After all, they do pretty well in space, they even seem to have some biological advantage. However, these divers are not just divers, they are also construction workers, and physical strength is important, an area where men have the advantage.
Otherwise, this could just as easily be a social adaptation (and if we are seeking equality in our society, which should try and address it).
Testosterone is strongly linked to aggression as well as financial/physical risk taking, so part of the difference between sexes is expected on that alone. [1][2]
The evolution of risk taking is actively researched [3], and we see pretty consistent sex based differences across most species.
On an individual level, women who want to take these high risk physical jobs should clearly have equal opportunity to do so. We're just unlikely to ever hit 50/50.
[1] https://www.nature.com/articles/srep11206
[2] https://www.mitpressjournals.org/doi/abs/10.1162/jocn_a_0044...
To paraphrase real world office debates, basically man dying after they did dangerous "at least knew what he did it for" while woman "stupid did not knew the risk". Judgement without knowing details in both cases. I havent seen dumb female death framed in terms of bravery, but I have seen dum male death framed that way. (This difference likely hurts men more then women imo, most paid jobs are actually safe)
Imo, neither that man nor that women meant to be death.
