Rebecca mumsnet. the OP was asking what others would do. There was no mention of disabilities. Yes, as a society we should be more understanding and considerate but the OP's immediate consideration is for herself and her DC, as is the case with most of us and she can ask the question.
Really, we want mumsnet to be a place where you are allowed freedom of speech, where others can question each other and support one another through life's trickier twists and turns - no matter what they may be.
No one here has been disablist. Perhaps folks could have considered wider issues too and that's something we strive for but the truth is that not everyone does right now and every issue is not about people with disabilities, although we do agree that everyone should be considered and valued as part of society. Mumsnet cannot change the world, as much as we'd like to, but we can all do our bit, ideally without personally attacking and shouting at one another. We can help to sow seeds but attitudes will not change overnight and the OP started a valid discussion.
She came here (sorry OP to talk about you as if you aren't here) for advice and support, which is actually what MN is all about.
Fucking hell, I have no words. Do you realize how much harm you are doing?