https://en.wikipedia.org/wiki/List_of_countries_by_total_hea...
The costs of medicare, medicaid and CHIP to tax payers are about what most Europeans pay in tax for universal health care, but then they also need to pay for health insurance for themselves.
As for controlling Hormuz, the US military absolutely could control Hormuz. I'm confident it's quite capable of it. It's that the US public wouldn't support the immense cost in lives and treasure it would take to do it, and maintain that control. No other military could even try, but the the USA could. It's not a matter of lack of military capacity.