Wow, I hope your son(?) is able to break away from your frankly horrible advice and live a happy life. Antidepressants help people and literally save lives. Depressed people can be very effective at hiding it, and you might think he's "kicking ass" up to the point where he isn't in your life anymore.

"Just toughen up" is the unsympathetic, counterproductive and, frankly, dangerous advice of the last century. Take your own advice and stop complaining about humanity deciding it's good to care about each other and care about yourself. Or better yet, see a counselor or therapist about your stunted emotional growth.