Wowza, she sounds like a peach.
I don't have any experience first hand dealing with such a lovely and informed person such as your MIL
, but from what I hear from other moms who DO have to deal with such people, the best solution is to not play into their b.s.. For example, when she suggests that you slap your son, you could respond with, "physical violence is not a solution to a complex neurological disorder." When she talks like she's the expert about all things medical, you could give the non snarky reply of "well, we trust our doctors, they have advised us to do xyz, and that is what we intend to do." Or the snarky reply of "really? and where did you get YOUR medical degree??"
When she throws out the "we don't have anything like this on OUR side of the family" crap, well, having been raised by Yankees but also having lived in the south for 27 of my 33 years, I have the mouth and brash attitude of a yankee when I need it, and I know that southern women like herself who thrive on passive-aggressiveness will back down if confronted directly. I would say to her, "just what is it that you are implying here? That ds's autism is somehow my fault? Are you somehow trying to 'blame' someone for a complex neurological disorder that is blameless, because if that's what you're suggesting here, it's awfully rude and ignorant." Just flat out confront her. Snakes like her will stammer and of course deny it and act all indignant that you suggested they were being so "rude" for even a millisecond and will back down. That's how they operate.
As for the issue of not letting her watch your dc anymore, simply tell her "you yourself stated ds is too difficult for you to watch, we are merely respecting your own personal limitations and boundaries." Toss it back on her.
Every time she uses that p.a. bullcrap, just toss it right back on her, flip it around and make it so that she gets it loud and clear that you are not going to play her games, and this is HER problem, not yours. It won't make you her friend, but I gather that isn't exactly top priority here.

I don't have any experience first hand dealing with such a lovely and informed person such as your MIL



As for the issue of not letting her watch your dc anymore, simply tell her "you yourself stated ds is too difficult for you to watch, we are merely respecting your own personal limitations and boundaries." Toss it back on her.
Every time she uses that p.a. bullcrap, just toss it right back on her, flip it around and make it so that she gets it loud and clear that you are not going to play her games, and this is HER problem, not yours. It won't make you her friend, but I gather that isn't exactly top priority here.
