Your response is defensive in many ways that you do not seem to be aware of. There is much talk of "dealing with" Autistic people as if we are a burden, and chalking up basic respectful treatment as you humoring us with "politeness". This outlook is anything but polite or respectful. It is ignorant and dehumanizing. I appreciate you having reached out, because it is clear you are working on some things, and unlearning some biases that are still pretty deep seated within you. I hope you will re-read what you have written and reflect on how little it trusts Autistic people, and how little respect it shows for our needs.
In this passage I have highlighted, you sound like all of my faculty co-workers who insist, baselessly, that a disabled student getting extra test time is "special treatment" rather than justice. When I say that Autistic people need and deserve accommodations, I am not making a gentle suggestion or a request. It is a demand. It is a requirement if justice is to be attained. If that offends you, you have some inner work to do.
Throughout your response, there is this lurking implication that accepting Autistic people will inconvenience non-Autistic people, or even outright harm them. Why do you think that? What do you believe about Autistic people and how we operate that makes you fear our liberation?
I want to believe, in a spirit of good faith, that you have been deeply, deeply misled about who we are. I think the ableism in our culture has kind of subtly brainwashed you (and a lot of non-Autistic people) into thinking that other ways of functioning are inferior or even outright dangerous. I hope you'll work on freeing yourself from that mindset. It will only bring you pain and alienation.