Three strikes and you’re out isn’t about retribution, it’s about the strong evidence that the specific deterrence and rehabilitation effect of prison will not work on a particular individual.
Do you know of anyone that’s been convicted of wage theft, sent to prison, convicted of a new count of wage theft, sent to prison, and convicted of a new count of wage theft
… or did you just want to flog your hobbyhorse regardless of how poor the fit was?
There is no such effect in the USA. Prisons are 100% not designed to rehabilitate anyone here.