There is no evidence that the work ethics of people with long-term sickness are any worse than the average person, and in some respects they are better. Studies frequently find that the long-term sick want to work - which is not the same as being able to work, but does show that fecklessness is unlikely to be the problem here.
David Cameron has spoken of his belief in a 'compassionate nation' - one that protects the most vulnerable. If his Government is serious about this, they need to make sure that they protect all disability benefits and housing benefit for younger disabled people. Only then will people on the autism spectrum receive the support they need to live independent and fulfilling lives.