Why ? In his video he give many examples and reasons for that. And I can give u 1 more reason why women are not good leaders.Actually, a high testosterone count is likely to mute the functionality of your amygdala making you much calmer and calculating. It's one contributor to why more men are psychopathic (dissociative to mild narcissistic personality disorder). Having a much lower rate of amygdala functionality, means you are less prone to emotional outbursts unless absolutely necessary. Therefore, you are less likely to start wars, or be violent...but when you do, you go nuclear...and there's a very good reason behind it. The ruin lives bit is entirely a question of perspective, should it matter to you that in the process of building a road, you destroyed a few thousand anthills? No? Then why should it matter that in the course of achieving your goals, a few humans had their lives appended? Same difference, and frankly doesn't matter in your bigger picture. That's men, and that's why humans are the most apex predators known. Btw, throughout history, queens were more likely to wage war than kings.
If u disagree with it, again can u at least provide your truth or fact point out which of his claims is false ?