"I know what's best. "
Speaking in all honesty, when emotions are involved I think that input from others who can think with their heads and not their hearts are of great value and support.
Your son knows more than you think, he has heard and seen everything...children internalize their fears and discontent. Why don't you sit down with him and explain what is going on, why let him hang on the sideline trying to figure it out on his own.