Why is it that men and women seem to be at war and are so brutally distrusting of each other?

Why is it that men and women seem to be at war and are so brutally distrusting of each other?

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It's as if men and women on the internet are in some sort of constant combative turmoil, and the only way to "alleviate" the hatred is by seeing each other in person and saying "hi". Just like war, where world leaders have to meet in order to alleviate the distrust and hatred.
Why is it that men and women seem to be at war and are so brutally distrusting of each other?
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