Is Macbeth a dumb brute?

        Macbeth might be an extremely good sailor and fighter, but for him to be dumb probably would make sense. Even if he was a dumb brute, it would explain the control Lady Macbeth has over his emotions and her wit she keeps throughout the story, making both of their hunger for power a drive for them. With Macbeth's character being really ignorant as in believing that nothing can stop him and that anyone who looks at him the wrong way are treated aggressively, it could be true that he is just straight up a dumb brute. For example, (A.5, S.4) the doctor telling him that Lady Macbeth is mentally ill instead of sick, and Macbeth takes this the wrong way to tell him that he is basically useless, he then asks him to do his best to put her to good health while putting on his armor, without really knowing what else to do. All Macbeth knows at the moment is just to use his ill-logic to find reasons to do the things he can do.