A prefers reading black on white. Z prefers reading white on black. M prefers the middle, reading grey on grey. No, there's no always a middle. In any case,

A prefers reading black on white. Z prefers reading white on black. M prefers the middle, reading grey on grey. No, there's no always a middle. In any case, you are not pointing at a middle. You are just focusing on a(n additional) fact in an ocean of known facts. A fact that you seem to think changes the perspective one should have on the topic. I didn't downvote, but I suspect you are downvoted because this is wrong and it doesn't help. We certainly don't need people to tame and water things down in this topic.