You're all basically saying that MacArthur was too far to the right and so you don't like him. Good argument.
Anyone who thinks that MacArthur was on the right, let alone the far right, never did take a good look as what he did. Aside from his disdain of politicians telling him what to do, based on what he did while Superintendent of West Point, while Army Chief of Staff, while Field Marshal of the Philippines, and while the Gaijin Shogun of Japan, he was center or center-left politically for the most part, excepting military issues. Republicans embraced him because he came into conflict with the Democratic presidents he served under, but those disputes were primarily over military issues. Only when it comes to the military, does MacArthur's record mark him as being to the right politically.
MacArthur finally let his disagreements with his political superiors lead him into insubordination and he was fired for it.