To wish a sibling wasn't born

This may sound selfish but I'm really getting annoyed with one of my siblings.

Out of all of my siblings this one is the worst I don't hate this sibling or anything I just wish that they werent born

From what I'm seeing even my parents regret having this one because it contantly abuses my father by biting a not letting him sleep every night it's the same thing and it clearly hates my mother.

I've heard my father and he just wants to grab it a shack it begging to be left alone and my mom is depressed that it clearly dose not love her.

To make it simple this sibling has autism while they weren't a problem in the past the last couple of years have been a nightmare it's getting more feral especially when it dose not get its way.

I get that they are unable to control themselves but I don't think that's the case 100% of the time.

It screams none stop constantly no matter what is done even if everyone bends of backwards it's never enough I don't even care any more if my parents are out I will tell it to shut up and put it In It's room.

My parents know and don't care that I do this because it's clear that they are done to my other siblings are very similar to me and in different ways I'm the only one that is doing whatever one everyone else wants to do but are afraid.

The kid is a little dictator and it feels like a prison looking into the brats eyes it's clear that it's aware of what it's doing it smirks when it gets its way because it knows that it can win with my parents or other siblings.

We can't enjoy ourselves we can't be a family because it has to have things consistent.

I'm moving next year and in my experience it has made me not happy with the idea of children because I fear that I might have a child with autism.

And before anyone says I'm a asshole I bet you wouldn't last one day living with a family member who has autism it is beyond stressful.

I'm thinking about speaking to my parents about sending it away to a home when I leave because I'm worried that thing might hurt my parents a lot more then it already has.