You can cherry pick particular metrics to make the US healthcare system work better or worse than other countries. The US does badly on infant and maternal issues, but that's largely caused by social and lifestyle problems unrelated to healthcare. On the other hand we're at or near the top in 5-year survival rates for most forms of cancer.
Medical debt is not the number one cause of bankruptcy so you're simply wrong there. Most consumers who file for bankruptcy have some medical debt but the most common cause is a sudden loss of income (like losing their job). When consumers don't have enough cash to make ends meet they prioritize paying for food, housing, and transportation, and stop paying medical bills. Thus the medical debts tend to accumulate but this didn't really cause the bankruptcy.
I do support measures to reduce healthcare costs and improve access for patients but let's be clear about what's actually happening.
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It's a double whammy in the US. Lose your income (job), lose your insurance.
Lose your job from injury and you're well and truly screwed.