Your comment stuck on my head and I’ve though about it quite a bit before that. I would only correct it by adding WW2. Many historians say in the not so distant future the wars will be viewed as 1 with an interlude and adjustment.
The result of them I’m afraid did ruin Europe and thus the Caucasians in the long run. My people. I don’t have a genetics degree but I do have a science degree and have taken a few Bio classes that got into the theory.
In my opinion the wars acted as a sort of horrible culling of Europe’s best. Essentially it was a huge selective breeding effort that removed a significant majority of Genes for bravery and well whatever the stuff is for fighting. Regardless of consequence. WW1 would have been bad, but there were many men that survived and women of course, they could have recovered. Yet then due to freak luck, effects of the first war and a bad peace treaty, some say conspiracy Europe was plunged in another awful culling where the weak and unhealthy men stayed home to reproduce. Between the two wars I think the Caucasian population changed.
Now we see Europe over ran with Muslims, Biden and the sort being elected all over the West, inability to fight for our great civilization. I don’t know if we are still capable. Not individually but as a collective whole.
Sorry for the gloomy message but I thought your comment was significant and didn’t receive enough attention.
Firstly, most fatalities were of a very narrow age group who just happened to be of fighting age at the time. Why should their surviving siblings, who shared their genes but happened to be too young or too old to fight, and who lived to have children, be any less 'brave and best' than the killed? The same applies to children of the dead already born or conceived.
Secondly, the industrial scale and nature of the killing, especially in WW1, meant that whether you survived or not was largely a matter of chance: whether or not you happened to be brave was irrelevant.
Thirdly, the majority of fighting men, on all sides, were conscripts: and conscription doesn't select for bravery or any other qualities except a basic level of physical competence.
Finally, in the case for instance of the UK, the numbers killed, terrible as they were, were simply not a large enough fraction of the male population significantly to affect the gene pool. (In the case of some combatants, eg Serbia, the fraction was approaching the level where there could have been such an effect.)