I'm going to cause my autistic friend to leave my discord server
Why would you get them to leave your discord server?
Because he's an attention-seeking prick, I hate him
That is such a strong opinion, does your friend know that you feel this way? You should not exclude him from the whole group just because you feel a certain way about him.
That's some buzzfeed shit right there.
I'm just saying, you should ask and see if the others in the group feel the same way as you. You should be a little more considerate towards your autistic friend.