Monkey your mum appears to have mental capacity to make her own decisions and has said she'd like sheltered housing, so why is this now being derailed because your brothers want something else? None of you children needed to have a family meeting about it or to agree with her decision to move into sheltered housing, it's not any of yous choice, it's your mum's. I'd ignore what they've said and help her get her house on the market and help her look at sheltered housing options. They can kick off as much as they like, you're entitled to help your mum do what she wants, what your brothers want doesn't come into it.
I’m freelance. My income went down through shit mental health when I was looking after The Hag - toxic MIL, thankfully dead - and last week I earned nada and this week the princely sum of £67. Buying wine with that.
If your brothers want to be all traditional about things, I'd force them to be affected by that. Ask them for money since you've lost earnings, invent some debt that needs to be imminently paid off or something.
But if they think I’m going to be a de facto carer, I won’t be billing them for £13 an hour, it’ll be £300 a day. Joke.
And there's your figure! I'm not joking. Tell them you've lost £300 a day and they need to split that loss with you, so they owe you £100 a day each. If they want to be traditional they can step into the traditional role of "provider" then, can't they! As for his bullshit claim that he'll lose his job, point out how many jobs you've already lost due to caring for your mum.
Food
She wouldn’t even let me take them out the front door till they stopped crying for fear of what her neighbours might think!!
Not trying to be mean to you but you let her choose this. You have the power to choose differently, to say to her "we're leaving now, bye" and then do it, whilst ignoring what she says about you not being allowed to.
I told her it’s just too much for us for an extended period like this and she didn’t see my point of view at all. She said she’s barely asked for much time and she’ll add up all the time me helping her takes to show how little it is.
None of this is relevant to your life because you're in control of setting your own boundaries. Those boundaries aren't something to be negotiated with others, you don't have to explain them or get her agreement, you just have them because you've decided it. That's how boundaries work. So all this is just hot air from her, she has no power over you, other than the power you choose to give her.
My dad even said “it’s not (CSA) that damages kids, it’s the parent’s reaction to it”
Your dad is one sick fucker Fairy
I run a car so that I can ferry her around to appointments and shopping.
Cats if this is the only reason for having a car, sell it.
She needs to be the one purchasing, maintaining and insuring a car (with additional drivers on her insurance) if she wants to be driven to appointments. She can then pay for your taxi to get to her buy buying less unnecessary shite. Failure to do this constitutes a choice on her behalf, a choice not to facilitate the circumstances whereby she can be driven by you.
If this was your best friend who you loved dearly, would you buy and maintain a car so you could be their taxi? I'm guessing not, yet you're doing that for someone you don't even like! Do you think that's the behaviour of an emotionally healthy person who has never suffered abuse?
One thing I learned during this process of dealing with the aftermath of being raised by such people, is that my definition of what is abusive and what isn't was totally off. If you're feeling/behaving the way an abused person feels/behaves, if you're feeling traumatised, then you probably have suffered abuse and it's just that you don't yet recognise it. Parentification is a form of child abuse and children can get removed from their parents these days if social services believe the child is at significant risk of emotional neglect. It's not irrelevant just because you weren't eg beaten.