> Or something like "Ugh, I didn't eat pizzas every night because I had no health insurance. It's unfair if everyone gets healthcare for free! Think of all those pizzas I missed out on!"

Since this proposal is debt-specific and retroactive, the analogy would be something like: "It's unfair if everyone gets all debt for prior health expenses repaid. Not their actual health expenses (however they were paid for), nor a reasonable health expense, but instead, whatever part of their health expenses are currently outstanding as debt."