@Cuckoosheep - "I don't believe in "a spectrum" where different people are impacted differently."
That's the difference between "belief" and "science". You can believe what you like, but you'd be wrong - because you can only see it from the perspective of somebody with a ND child, not from the perspective of someone who is actually ND (y'know, the people who used to be ND children).
This is not me minimising your child's needs, by the way, or the way you support him. Yes, there are many people with varying degrees of support needs, but that doesn't mean they have entirely different conditions. Even within the group who have extreme support needs, their needs will be markedly different - but the cause is the same (comorbidities aside, of course). Do each of those need a different diagnosis too? Because if that's the case, you'd have as many different diagnoses and names for the conditions as you would people with the condition themselves.
"One of the main pitfalls of this argument is that to recieve a diagnosis and therefore be autistic you have to have a considerable defecit in your social communication skills, so much do that your life is impacted"
I have been talking all along about people who - like me - have been diagnosed autistic. It's not just "a considerable deficit in your social communication skills", it's far more nuanced and specific than that.
"as they haven't lived it and possibly due to their dx would struggle to see that what he experiences is completely different to what they do"
Because more of us have lived it than you think. Just because we can deal with the world now, after decades of pain, trauma and considerable effort at considerable cost, you seem to assume it's always been that way...and that's the fallacy in your argument, because 90% of the time it's not the case. Certainly wasn't for me. Because you can only see it from the outside, you can't see the commonalities between how we experience the world and the way he does - and you're lucky in that regard. This is known. That's why, by focusing on trying to separate those of us who can communicate eloquently into "something different" you're missing the point and the core of what autism is.