You wanted honest responses, I hope this is balanced.
Anything to do with people has good, average and poor, it is usually a spectrum rather than clear distinctions. To explain you get good, average and poor managers. You also get good, average and poor employees. How many times do you get employees complaining a colleague gets away doing less, that poor performers are not dealt with etc.? People are actually unique individuals there is no such thing as “normal” it’s actually average in that most people fall in the rough centre of the spectrum.
People with disabilities are the same, some never use their disability as an excuse no matter how much they struggle. At the other end some do use their disability to do the minimum possible. That is no worse than people without a disability as some also do the minimum possible.
Organisations, Senior Managers, managers, and colleagues all struggle with reasonable adjustments, particularly when they can’t “see” or “comprehend” the disability. The same applies to flexible working which can be a reasonable adjustment or can be a right to request; many don’t realise the two are different. There isn’t a blanket set of RA for ADHD, Autism etc. as people don’t necessarily face the same barriers etc.
One side effect of many disabilities is reduced capacity where part time hours would enable people to work the hours they can without exhausting them for anything else e.g. being able to cook a healthy meal when they get home. Masking takes a huge amount of effort that many don’t understand and why many people can’t work full time for 40 years.
We need a huge shift in law, societal and organisational practice to start from a position of what people can do rather than what they can’t do. What tools can then assist people to do their best. Education is key to achieving this but it needs input from quieter voices and not just those who shout the loudest voices.
Most RA cost nothing or pennies it’s creativity that is lacking, it is understanding people don’t fit in a box.
Having said this from the other perspective, businesses have to deliver and achieve and this can require certain minimum requirements. Understanding your employers requirements and working collaboratively and creatively to agree RA achieves the best outcome for both parties.