Disabilities do not excuse you from accountability.
You can feel sympathetic for someone's struggles in life, but their disabilities do not change that their actions are problematic or harmful.
If you have the ability to be a content creator, then you have the ability to accept criticism when you do wrong.
It is your responsibility as a creator to lead by example and to correct bad behaviors. If you can't do that, then you shouldn't be a content creator to begin with, as you are in a position of influence.
Sure, disabilities can play a part in behaviors. But it is not an excuse for bad behaviors. And it should not be used as a "get-out-of-jail-free" card to avoid being responsible for your decisions.
Own your behaviors. Apologize. Grow and improve. Don't lie or distort the truth to avoid tough conversations.
And most importantly, don't coddle or enable this behavior from disabled people in your life. Set boundaries and adhere to correcting them. It does nothing but set them up for failure as an adult when they have to face reality. Infantilization is VERY harmful.