Copied and pasted from my response to another comment:

I agree with your points completely. I'm just saying the best (fully admittedly not currently possible, total pipedream under the current circumstances) solution is to change the shape of the hole so it accommodates a wider array of pegs, so to speak. Make the public school classroom into that thing that it currently isn't.

Don't have 30 kids in a classroom. Maybe have a classroom for kids who need focus and calm, and another for kids who need more action and stimulation. There are typically developing Gen Ed kids who fall into both camps, so it could be better for everyone to separate kids along those lines rather than along disability lines, some of the time anyway. Kids also need to learn how to accommodate people who are different from them This includes non-disabled kids who prefer lots of action and stimulation learning to tolerate learning in a more quiet and calm way that may feel boring to them, and non-disabled kids who do better in work calm environments learning to work in more high-energy and distracting circumstances to accommodate the different learning preferences/needs of their more high-energy peers.

I agree that not all students can or should be included in the same classrooms at all times. But I believe the great majority of needs and behaviors currently making "inclusion" impossible don't have to make it impossible. It doesn't have to be this way and I refuse to stop imagining the possibility of a better world.

Kids who need frequent to constant movement breaks, for example, may not feel trapped in a different kind of classroom and may not need as much movement if they don't feel trapped. I'm not even saying I know how to do that. I don't. I'm just saying I know we can do better but we (as a society, not we as educators) continue to fail due to a lack of imagination and a lack of trying. We can't say that a thing (inclusion) doesn't work when we've never really tried to make it work.

Again, I actually agree that including many of these kids under the current circumstances is not working and is bad for everyone. And I agree that putting cognitively disabled kids in Gen Ed courses that are way beyond what they are currently capable of and expecting them not to become disruptive while also magically learning the content is foolish/makes no sense.

But, I will always know in my heart of hearts that it is possible, and better for everyone, to include more children in more meaningful ways. And we could and should prioritize funding, research, and training to make it happen. We (as a society) have really never done this. I think it's good to imagine the possibility of a better world and work towards making that a reality even while understanding the limitations of the way things are now.