Asian Americans and East Asians have lower suicide rates than Americans (over 60% lower), and especially American white males, you've fallen for a false trope, which is exactly what I expected when I posed the question. I knew that you would immediately appeal to this false trope because you're looking for an excuse.

They outperform by the metrics that matter for a clinical diagnosis and the West is so quick to jump to the conclusion that they're "under diagnosed", it's a uniquely Western and especially American conclusion.