Yes, I do think dd having AS has taken away my choice about whether or not to work. I don't resent this, but I do sometimes wish I could pick up my career again.
I would never be able to find a CM willing or able to cope with her fluxtuating moods and her mountain of fears and phobias -and I don't think I would be happy leaving her either. I would need to be certain that her needs were being met and that's a big ask.
I know her triggers etc like the back of my hand and, as such, can try to pre-empt a lot of meltdowns from escalating.
MIL looked after her when she was younger, but she has health problems now and, even though she adores the dc, I would feel that I was asking too much of her. DD can be extremely challenging and demanding.
I think it's very much down the the individual family, though. My former boss has a ds with CP and she worked full time because he attended an amazing school and she had a huge amount of family support.
So as far as dh and I are concerned, it's a non-starter and I remain a SAHM. Most of the time I am happy with this, but there are times when I miss going out to work.