Thanks for the input so far everyone.
The reason my parents don't want Jesse to see a psychiatrist, is because of their religion. My parents are both strict christians, and they believe that anything mental can be solved God.
I don't believe that, but unfortunately I'm not his mom.
As for my brother, he doesn't want to see a psychiatrist because he is afraid to be labeled as "crazy".
I'm just really frustrated, and I want to do what is best for Jesse. I love him very much and it breaks my heart to see him like this.