Healthcare is one part of the profligate safety net europe has maintained for decades, not the whole thing. Europe has more pensions, more unemployment, more retirement benefits, more childcare, more socialized housing, more of almost every flavor of welfare. They pay for this by shifting the burden of defending themselves to America.
Here's a good and more in-depth analysis: https://foreignpolicy.com/2025/03/04/europe-military-welfare...
It's a hell of a lot more useful than one graph. Please read it.