TL;DR is they’re an anti-autistic hate organization.

Of the top of my head, here’s some highlights:

• Pushing ABA “therapy” — literally conversion therapy to make autistic kids behave like allistic kids, i.e., traumatizing them into suppressing their natural behaviors and impulses and forcing them to perform behaviors or to be in situations that are very uncomfortable for them. (Created by the same guy who created anti-LGBT conversion therapy, so, yknow.)
• They practice eugenics and advocate genocide.
• They frequently portray autistic people as burdens on society that must be eliminated as soon as possible, rather than as full human beings.
• They were still on that “vaccines cause autism” bullshit as recently as the 2010s, funding research into the vaccines-autism link that had been long-since debunked, and pushing anti-vax bullshit.
• Only 1% of their budget is spent on services for helping autistic people or families
• Autistic people are by and large not involved in the organization — they’ve had at most 1 autistic board member (out of 20-30) and iirc he quit within the last couple years, though I could be mistaken.
  • In fact most of their board members are allistic capitalist ghouls, including current and former CEOs and senior executives of Goldman Sachs, Lehman Brothers, White Castle, S.C. Johnson, L’Oreal, FX Networks, and AMC Networks.

They treat autism as a disease to be cured with little regard for quality of life instead of a difference to be accommodated with consultation of the actual people.