beyond I agree totally with your point regarding people making assumptions about people with disabilities and their capabilities. However, I do think that people on this thread are talking about lower level employment because Freud was referring to people with extreme disabilities and severely impaired cognition, not because they think all disabled people are incapable of mainstream, demanding work or professions.
Again and again it is shown that people with disabilities with stable conditions (and even not so stable conditions) are at least equally as reliable and productive as their able bodied peers.
In general I think we have to remember that Freud's witless musings are not government policy but the blatherings of a swivel eyed ideologue, swiftly and quite panic strickenly, disowned. However, since he was the architect of the bedroom tax and is closely involved in the train wreck that is Universal Credit, it is wise to be vigilant about anything he says.
Also, as the OP, I would like to object strongly to Mumsnet's imputation that my post was anything other than a temperately worded objection to Cameron's tactics at PMQs yesterday.