Why do some people think autistic people get away with way too much? Not true

One of my sisters good friend seems unfriendly to me. They like him but I don’t. He is funny, sarcastic, witty and he jokes around (even roasts). My sister said he may sound like he’s mean, but he really isn’t. You should give him a chance. He nice once you get to know him. Just don’t cross his bad side and nice isn’t what you’re going to see.
He’s always picking on me, sarcastically because he knows I’m a softie. He mocked me so many times because I whine and complain about everything. Like when I ask for the truth and someone tells me straight, I get angry and twist words around and said they’re being mean. So they think.
He told me I need to crying like a baby and start woman the f*ck up. Stop using autism as an excuse to be a d*ck. I can’t believe he said that to me. That was a while back.
He thinks people like me get away with too much because we’re “special” and we deserved to be called out when we’re wrong and being inappropriate.
I’ve been called out for those. Anyways what does he know? Like when I try to scream at him, he roasted so bad that I couldn’t speak. One of my cousins said, “Ha! About time someone destroyed you! Stop being a whiny manipulative brat. Be an ADULT.”
My sister told him to not be so hard on me but he said autistic people gets coddled way too much and they need to face tough situations and deal with difficult people. She did agree with that but not how he spoke to me.