The UK system for disabled people is horrendous. I've been through it. I'm having a panic attack just thinking about it now. I'm autistic. I can get a job, I can work, but I can't maintain it. I might manage a day or two or even a month but sure as night follows day, complete breakdown follows work.
The system simple cannot comprehend a disability like that. That someone is alert, intelligent, fully capable one day and a completely useless, gibbering wreck the next. And the questionnaires I had to fill out asking me to explain why people don't like me or think I'm rude or whatever. How the fuck do I know? If I knew what I was getting wrong I wouldn't be autistic, I'd just be an arsehole.
Here in Sweden I was assessed, found to have 50% capacity (they wanted to sign me off 100% but I wouldn't let them), so I am now early retired due to disability 50%. That means they will never ask me about that 50% again. It's done, I'm permanently signed off sick 50%. If I'm unemployed I only have to search for work for 50%. I can work 50% and earn as much as I like and it won't affect my 50% disability benefits. I'm probably making it sound like a rights dog's dinner but it's so much easier and disability friendly.