Can I try to ghost this boy?
Awe, why in the world would you ghost this poor boy you speak of? Is he not worth talking to first? I can't believe it.
I'm going to ghost him because I don't find him attractive
Not everyone is going to be your type, but you don't have to be rude and cowardly about it. Ghosting someone is very hurtful to others because they'll always blame themselves when it's you who is at fault. Just be mature and say you don't want to be them.
Why do you keep telling me what to do? We are adults. No one is forcing you to care
Reasons are quite important to many. Even if you just say something like he is not your type he will be more understanding and not have a self pity type of moment where he finds himself undesirable to all. You just need to try to have more maturity about the whole thing too.