I don’t think ‘diagnosis’ is the issue, as it’s a path to extra support.
However, I do think the spectrum for autism has got too broad. And children are given this diagnosis as it’s the current best fit to their symptoms/diversities and there isn’t necessarily another diagnosis to go to in order to acknowledge their needs.
In my opinion we need to reassess and adjust to have different types/levels of diagnosis so children can get the right support to stop this happening (if it is indeed happening). Not easy, as it’s so unique and complex.
Putting a non-verbal child who needs 24/7 support in the same ‘bucket’, as a child that’s coped (although with struggles) in mainstream school until their early teens, is not helpful to anyone. It’s also hugely frustrating to parents when they are trying to access support and people don’t get it because they associate autism with the latter child. And vice-versa.