NC as it has nothing to do with my usual content on here. Apologies for the length I want to give the full story and hopefully get some advice.
DM and DF are late 40s so fairly young, they had us quite young. I'm late 20s with DCs/DP/house of my own and my DBro is a few years younger than me and lives with them.
I have a tendency to block out bad things and completely forget them, sometimes they resurface randomly years later so it's taken me some time to process and fully accept this. They have always liked a night out/drink since I can remember but they worked hard and long hours and I always saw it as letting off steam on the odd day off/weekend.
My DF has struggled with alcohol for quite a long time now but it has slowly crept up to the point he had a well paid/high ranking job and there were half or completely empty beer cans/alcohol bottles found in nooks and crannies around his place of work (large industrial place) his job was on the line but the company went under before anything was done about it (I only know because I found out from old friend who worked there).
They hide it well and my DM has a tendency to cover for DF and hates being judged/seen as having issues/inferior and I live a bit of a distance away so they always know when I'm coming over and when I'm over everything is nice and dandy. But my DBro tells a different story, he's completely fed up of them, he has told me my DF was going 3/4 days at a time without being sober, he's self employed now so gets away with it better than he would do in a FT job. My DM would also drink and they would often have screaming (well DM screaming) rows in the house.
I don't exactly know the details of how severe it all is at the moment as my DBro has said he's fed up of talking about it and only gives me very basic info when we do speak. But he has told me they had a week of being better and they're not great again. He's not sure exactly about my DM as he doesn't talk to them much really and keeps to his room but he said my DF has been drinking again almost daily.
My DF has a tendency to call people on the phone (think distant family members and my DGF and myself) and regale them with his plans for stuff / general talking that doesn't make too much sense and it's hard to understand what the point of it is - however he doesn't slur his words or mispronounce anything so sometimes unless you know him very well you can't tell he's drunk.
My DGPs live in a different country and recently come to their attention just how bad it all is and they've had a talk with them which my DPs brushed off saying its all old news and it's not like that now.
My DGM calls my DBro and sometimes asks about the drinking and my DM found out and has asked DBro to lie about it which he said he won't so she's fallen out with him.
I'm not teetotal myself but I never really have more than a couple of drinks (g&t or glass of wine in the evening) maybe once a month if that unless it's a special night out (think childless birthday night away or something) which only happens a couple of times a year as I have a bit of an aversion to it usually and would hate for my DCs to ever see me really drunk like I've seen my DPs before.
I don't talk about it with them, I almost don't have the energy whenever I think about it. But I'm worried about my DBro, he's really resentful of them but he can't afford to live on his own at the moment due to a few factors and at the moment he's basically holed up in his room all everyday gaming/staying up until silly hours and I worry about his general wellbeing as he's always in a funk.
I don't really know what talking with them would bring as I can imagine denial, trivialising it and them especially my DM taking great offence.
A very selfish part of me also feels like it's not my responsibility to try and help them sort it out.
Another issue is that they are not originally from the uk and their language is just about passable but I can imagine they wouldn't benefit from any type of help or counselling unless it was in their native language which I could potentially find for them but I'm sure then they'd be worried about it being someone they know / someone finding out about it which they'd never allow.
I have this feeling deep down that it's all going to have to come to a head sooner or later they want to have my DCs overnight which I wouldn't allow and always skirt around the suggestion, they would again take huge offence at the reasons for it and even though I know they wouldn't drink around them or put them in danger especially since they know what that would mean going forward my partner would also point blank refuse to agree to it which I'm completely fine with.
I'm aware that I suffer with a bit of FOG and generally hate rocking the boat as I have no energy to deal with a fallout/drama but I have done stonewalling before.
At the moment the whole issues is on my mind quite a lot and I'm not sure if I should try to do something about it even if it's just for the sake of my DBro or leave them to get on with it until it all blows up in some sort of row or big fallout.
Any type of advice would be really appreciated as I feel quite overwhelmed with it all.