Because it is.
Here's a bit of info on prop 47, which reclassified shoplifting from being prosecutable as burglary to being prosecutable as shoplifting (a new classification created by the proposition), with the latter being prosecuted as a misdemeanor. It did not, as Fox News and others who can't stop lying about this state for their own reasons would have it, make it so that if you steal under $950, "they" won't prosecute you.
Assemblyman Kevin Kiley, who (re)introduced this lie on Fox News in 2022, apparently thinks that being prosecuted for a crime that could land you as much as six months in county jail is "not even a slap on the wrist." I would suggest that if he
really believes that, he ought to prove it by reporting to the county jail nearest to where he serves and staying there for a six month stint.