Forgiving works when the other person has expressed regret for their actions and doesn't repeat them. Neither apply in this case. I too voted to keep him banned.
chc
Even if he regrets his comments — which he may sometimes, as people with his condition are given to do, but I don't know him well enough to say — he can't promise not to repeat them. He's not a well man. There's really nothing to be gained from hating this person. He deserves sympathy, not ire.