On education SEN we desperately need all of these things on the table, some kids can do best in mainstream with minor adjustments, some kids will never cope in large classes due to sensory needs.
I’m dubious that we’re adequately separating out cost savings from improving outcomes for all children.
Blair wasn’t necessarily wrong to make mainstream an easier choice to make, if it was right for particular children, but it’s become a cost saving push where kids need to fail out of provision a ‘prove you can’t cope’ and that isn’t the right implementation.