NC, I'm so sorry to hear of your brother's sitch. So much like ours and many others here. I do think the WAS tend to be good at making us feel guilty, but with time I think we do realize that wasn't the case. My X had me feeling literally like a horrible person. When I went to the C the first time, the first thing I told her was that I was a horrible person. It took me a while here and in C to realize I was not seeing things clearly.
Do you think your brother would consider C? Esp. if he does have depression, but even if not, sounds like his self-esteem and PMA are in need of strengthening. Is he active in his church also? They helped me a lot also. Prayers are a good idea too; I'll add him to mine also.....