As a medium/lower support needs autistic who works with young higher support needs autistic:
We all matter. We all have the same diagnosis. We all deserve to be treated with dignity and respect.
I can mask and might be seen as 'odd' or 'weird' in public. The students I work with are seen as 'dangerous' and 'practically little kids'.
I can go to university and work with accommodations. The students I work with likely will never live independently and a few might find jobs that support them but still pay them less than an abled worker.
I have full control of my finances. The students I work with aren't allowed to make independent financial decisions, even if capable.
If I say 'no,' I'm making a choice. The students I work with can't say 'no' without being labeled as defiant and difficult.
I can feed myself, bathe myself, and take care of myself with extreme challenges. The students I work with are unable to take care of themselves without high levels of support/one on one support.
I had an IEP in high school but was mainstreamed in classes. The students I work with take separate classes and some rarely get to interact with their abled peers.
Our experiences are fundamentally different. Higher support needs autistics will experience a specific type of ableism I never will, and can never fully understand.
Lower support needs autistics need to stop saying we understand what higher support needs autistics are going through and then present autism as only being disabling because of society/lack of acceptance because that is dangerous. We need to stop saying every autistic person is capable of everything if given the right support because that leaves out huge parts of our community who will never be able to do certain things, regardless of support.
We are worthy of existence regardless of our abilities.
Autism is a spectrum. It is not the same for every autistic person. Autism acceptance and advocacy has to come with accepting, acknowledging, and listening to our higher support needs peers.