OK - but this only works in terms of acting out a moral framework. You need reason to examine the validity of your moral choices and to create a moral teaching.
Good example. Mathematics, however, involves nothing like morality with its emphasis on ought and should. Mathematics does not deal with discriminating between right and wrong. A disordered mind might well be predisposed in certain cases to deal better with numbers than a "normal" mind. But morality - IMO - is trickier because it deals with a much less ordered system - human nature.
I have not said that. I have indicated that moral teaching like Jesus' that has changed how people looked at the world, themselves and their behavior cannot come from a disordered mind. You've shifted the ground a bit here. I'm not talking about whether or not mentally deficient people can make moral decisions (because you just indicated above that moral decision-making can be done based upon inherited moral structures that don't require criticial thinking). There is a difference between making a moral decision based upon an instilled framework and being a moral teacher.
Frankly, this strikes me as a red herring. This discussion isn't about the nature of insanity - it's about who Jesus was. Anybody who said the kinds of things Jesus said could not be seen as simply a moral teacher. He claimed to BE GOD. Either he's telling the truth, or he's crazy. What other options would you like to offer up for such behavior? He was joking?
OK - then ravel out the problem with the logic of the statement. Are you willing to suggest the opposite is true - that truth can come from disorder?
Reality exists because there are cause-effect chains that extend from us to other people. If I get drunk and run down your wife/husband/son/daughter I would assume that you would agree that our two "realities" had something in common.
I need not prove anything regarding insanity. You're avoiding the central crux of the argument - which, stated yet again, is this: Jesus claimed to be God, and accepted worship as God. If he was not God, then he was either insane, or a devil, because no good Jewish boy in his right mind would do either of those things. To call him a good moral teacher and nothing else - in light of his claims - is absurd.
You're shifting the ground here too - kind of a tactical retreat as far as I'm concerned. Answer my question, please. Specifics, please about how Christianity "takes" your money against your will.