Sounds like bad management. Explanations aren't excuses, they're simply the reason something happens.
ADHD is often an executive function disorder. As a manager, have you offered them an accommodation?
Lots of “I” statements from you and not a whole lot of understanding.
> have you offered them an accommodation?
Yes, and that wasn't my point. Except for one case who was definitely abusing the situation, I never once revealed that my inner monologue was pointing out that I have the same issues they do but I don't use it as an excuse for not getting my work done.