estion time, /r9k/,

>Step brother is introverted NEET
>Doesn't talk to family at all
>18 years old
>Has never had a job before in his life
>My mom wants him out of the house but my step dad keeps pampering him for some unknown reason
>Could easily live with his grandmother who will take care of him until she dies but step dad refuses
>tfw all I want is his bedroom and I am home from college, work 2 jobs and pay my own bills
>tfw I'm sleeping on a fucking air mattress in my parent's living room

Am I in the right here to be as angry about this as I am? I mean, the kid has no aspirations to do anything in life whereas I do. He has never applied for a job once while I've been working since I was 16. To top it off, he forgot to get tickets to his high school graduation and didn't walk the stage today. He's basically a failure and my step dad is banking on the idea that this kid is going to be the next Steve Jobs because he's really good with math and computers. Who's in the right here?