I'm going to tell a buddy that I thought his dream was a bad idea
Is that necessary? Do you think that he is going to listen to you?
No I don't and he is not going to change his mind and he will find people who agree with him
Well, if you gave him your advice and your opinion, that is the best that you can do. If they do not want to take that advice it is up to them. You did what you could.
Well I can't believe you stood up for him and also it bothers me that you are more worried about him then me.
Actually, I understand your frustrations and how you were only trying to help him as best as you could. If if he doesn't take you advice, he should be thankful you were looking out for him. I think the best thing you can do is continue to be his friend and move past this situation.