Agree with this.
If you take a vulnerable mentally disabled person out with two paid carers to a strange place, there will be a risk assessment floating around somewhere.
When your autistic child goes out with their parent(s) there will not be a risk assessment.
The fact there will have been a need to have a risk assessment in the first place is the point. Who wrote it and who approved it. Was it good enough? Did it reflect this person's needs and behaviour and did it properly consider public safety? Did it properly assess the ability of staff? Were the staff following it and were they doing their job properly? Did this person have their full undivided attention and were they close enough at all times?
The fact there will inevitably be a risk assessment or there should have been one is what this entire case will eventually centre on.
That's fundamentally different to blaming anyone autistic or looking at anyone autistic as a danger.
Someone has failed. And I would put money on it not coming out of the blue. There will be a history and reasons for the need for two carers.
It is all about the risk assessment not the diagnosis.
There are lots of comments here about SEN issues in schools. We had massive problems with out son and a child who was harming other children. We had to eventually challenge on safeguarding responsibilities - which were as much for the benefit of the child concerned as our child and other children in the class. It did eventually lead to social service intervention and to the children getting appropriate medical support. But we had to really stick our heels in, understand and know the system and our son literally had to take punches without hitting back. It also helped that our own son had a SEN diagnosis too.
Once again this comes back to this point about risk assessments and legal liabilities and responsibilities and correct enforcement of them.
No one wants people to be locked up. But there are situations where actually some people do have to be removed from certain social situations for their own safety because they pose too much of a risk to themselves - the risk of hurting someone else is a risk to themselves.
We can not pretend differently. It is a failure of a duty of care to these individuals to do so.