Your claim here is not true. You'd be able to localise function with great precision, and with some time and tapping individual components, you'd make headway in far less than a thousand years. Just as our understanding of the brain has made rapid strides once we started getting good neuroimaging devices (not meaning to diminish all we've learned through studies of people with various lesions, of course).
Your entire perspective here flies in the face of a lot of really good science - no matter how convincing you may sound to people, your words are not sufficient in the face of that science, any more than a really good argument from a priest or philosopher about souls should distract people from proper science. Empirical study mediated by scientific communities will always be superiour to the assertions people can toss around.