Important, Just Not MOST Important

Sorry, parents. Your voices, your points of view on autism, they are not the most important voices. They are important voices. They are good voices to hear. They are already pretty well-heard, too. Most autism charities base their actions to your ears, your voices.
Here's the thing. The voices, the points of view, the wants, the needs of actual autistic people are more important than those of the families, and people don't get that. It doesn't mean "Oh, we need to ignore all parents," though I'm more than happy to ignore any parents who think listening to autistic people means ignoring parents. It means "When autistic people say something, we need to listen." It means that if autistic people say that a certain therapy gives a lot of them PTSD (That's one of the big problems with ABA, by the way,) it means that you need to examine why that's happening and change what you're doing so that doesn't happen. If that means scrapping the therapy, that means scrapping the therapy. If it means putting the autistic person in charge of what the goals are, taking stimming off the list of "problem" behaviors, allowing for breaks, and either completely eliminating aversives or making it so that the worst one would still be an acceptable punishment for a neurotypical child, that's what you do. (I suspect that those changes would prevent the ABA-induced PTSD issue, but I am not sure, and no, I do not think you should test this on anyone who does not consent to testing it since that's another breach of ethics and another failure at self-determination.)
I am not and will not say that we need to silence parents- we don't, and it would be a horrible mistake. But we need to make sure that autistic voices are heard the loudest in what is done to help autistic people. Autistic people are the most important voices in discussions about autism. That's the way it is, and we need to act like it.
Families might read this and say, "But you need to hear us!" Yes, we do. And we already hear you. You're the ones running autism organizations. You're heard. You're using the fact that you are heard and the fact that you want to stay heard as a reason to silence us. And don't tell me that "you aren't like that." If you feel the need to enter the conversation that way, it means you are like that. It means that you aren't listening to what autistic people want. If you're not like that and want to do something, talk to the parents who are like that. Tell them to stop.