I am losing sleep over this and and so upset for DM. I'll try not to be too long but there's a lot of history.
Firstly I want to say that DM and DF tried their absolute best as parents and no one is perfect. DM had a hard childhood with an alcoholic father who emotionally abused her and made them homeless several times through his drinking. She kind of spoiled her kids a bit as a result, giving us everything she never had. A stable home, food on the table every day, amazing birthday gifts etc but discipline was a bit lax - not absent but not as strict as it maybe could have been.
DBs were awful as a teen and young adult - and through hiding his behaviour he got away with a lot. He stole from the charity box, from me, my now DH, from DPs and never had any real consequences for it.
He took drugs a fair bit too and was just generally selfish and immature - not realising the effect his actions had on others. Our other DB was actually similar.
Love was always there at home but discipline - I don't know. I was the goody two shoes that didn't get in any trouble so DB sees me as the 'golden child'. I think he and our other DB were doted on and spoiled because I never got away with all the things they did. Classic older and younger siblings really.
DPs were unaware of a lot of DBs worst behaviour and they did try to discipline him when they found things out but he ran away from home and they backed off a bit.
So it became a telling off only.
I moved out at about 19. DB was given money to go on a long trip abroad so he would.have been 17/18. Other DB had been away previously and had a great time.
He went to Thailand - argued with his friends so travelled alone and managed to get himself addicted to drugs (don't know which ones but I suspect heroin) DPs sent him a train and plane ticket to get him home, which he did and then took him to the Doctors. The GP said to give him time to rest and recover so that's what happened.
DM calls it a 'protective ring' around him so he could recover and go on with his life. Nothing was expected of him, he was just given love and time.
This is where I think DB is being awful. He has now thrown all this back at my DPs, (especially DM) and said he should have been given psychological help at the time and he now blames all his current mental issues (he suffers from depression) on this perceived lack of help. He says he wasn't pushed to get on with life and he didn't get a job for a few years after that. He blames that on DM mainly. Not the drugs.
He eventually moved out and went to uni and now is fairly stable financially with kids and a wife. However he still suffers from depression from time to time and I personally wonder if there is something else wrong mentally due to the drugs and stress in his teens. It must have been a scary experience for him so I do feel for him a bit but it's been 20 odd years and he's a grown adult. You can't blame your parents at this point. He doesn't take personal responsibility for any of it.
I think he's being unfair to DM particularly because he keeps bringing up the past and comments on mum's personality. So.much so that I've had her in tears in the phone and had to spend last weekend calming her down. She thinks he will cut ties but she loves him and her DGCs of course so doesn't want to lose touch. She has apologised I don't know how many times for the past and I don't think she needs to keep being told she is a bad mother. No one is perfect but there's no need to be unkind about it.
He forgets that this was 20 odd years ago and they DID take him to the GP and did what they were told to do. Some parents would have been a lot harsher and they did what they thought was right. He won't accept that and can't seem to forgive DM. He has tried counselling but this just seems to make him more selfish and need to attack DM more. He's being so unkind.
DM's personality is a little anxious and this comes over as over-sensitivity to criticism and she can be a little short with people when she feels 'got at. This is a minor thing to me but DB has blown it up and takes it all far too personally.
Just recently he told her off for talking over him, which she sometimes does do, but then so does he! He's also really sensitive to criticism so if DM says something he think is critical of him he stores it up and goes apeshit later on.
The latest thing he's done is because they are planning to meet up soon. He has set ground rules for DM about not talking over him or belittling him as he sees it. She doesn't realise he feels like this because he never says so at the time so she is now thinking she will.have to walk on eggshells in case she says something out of turn.
Yes she's a bit tactless but she's never unkind on purpose. DB needs to cut her some slack and realise it's him that's the main problem.
I would keep out of it but they both moan to me on the phone I feel I'm needed to keep things together. I'm just so sad that DM is being upset all the time and can't have a good relationship with her son. She's not toxic imo but DB has started to say she is. I think he's wrong about this. She's not perfect but she tries her best. I think ithe toxic thing has come from counselling. It's not something he's said to her yet but if he does she'll be devastated.
I haven't said everything. There's a whole.other issue with our other DB who he has cut ties with completely. It is too.much to go into this now but the pattern is similar.
Sorry this was long and rambly. I really hope he doesn't see it or I'll be the next one to be cut off!