The presence, or increase, of suicides does not mean that medical school is too "brutal." It could very well mean that young people are becoming worse at coping with stress. Or perhaps students feel more pressure because of their perceived consequences of their failures: basically no alternative career path that would provide the same standing as medicine, whereas in previous generations, med school dropouts could go on to dental / law / cushy corporate gig more easily. This could be one of the consequences of rising inequality.
I'm not disputing anything here, just want to discuss this logically. I've been in graduate school, and it wasn't that hard, and yet some of my peers would freak out constantly. And some wouldn't.
I will say that there's definitely a hazing culture across all professions in America that's completely unnecessary and inappropriate.