I think saying meditation is a narcissistic delusion is meaningless nonsense. It sounds like intellectual elitism, and a lot of people with high degrees, like the ones it takes to be called a psychoanalyst, have to convince themselves of things like that to justify the cost, effort, and time it took to get their certifications.
I think there is a distinct difference between the act of counseling, which is an immensely important task, and the weirdly calcified belief systems that grow up around psychoanalytical theories. Counseling, by someone older, wiser, more experienced, more in tune with emotions, more in tune with whatever, or simply with a different perspective than your own, is and should be a natural facet of human life. But I don't think that's really where your brother is coming from (no offense).
A lot of mental and emotional problems are physical in nature. Working on your health and diet will help give you a much better foundation to work from and you may be surprised how many problems that solves right there, or at least reduces to a manageable level. Then meditation is an important component, as obviously anyone around here will say. And if you can find counseling of some sort, whether that's an unpretentious therapist or the guys in the park playing chess, that could help too.
I think the important thing is to not judge yourself for trying anything you think you may need, and I'm certainly not trying to say I know what works and will help every single person. But if it feels too intellectual and inaccessible, it's probably a waste of time. I've never found meditation to be a waste of time though, and it hardly interferes if you do want to try other things to help yourself along in life.