why doesn't the amerikkkan govt just save a tiny bit of funding for the few things that immediately run out of money for some reason during a "shutdown"

richest country on earth immediately stops paying its entire civil service when there's a disagreement on the budget which is something that literally only happens in the USA as far as I know.

I'm sure there's some 🤓☝️ reason like the govt runs on a blockchain that uses proof-of-anti-communist-law-passing to mine new blocks or something