I hear this one a lot, but it's not "decriminalization". Prop 47 reduced theft under $950 to a misdemeanor from a felony. A misdemeanor is not decriminalization! Not even close. You can go to jail for a misdemeanor.

This is actually pretty normal nationwide (and also a rather conservatively low dollar number.) Fun fact: Did you know Texas' limit, yes texas, is $2500?

I don't think that reduction is the reason for an increase in crime and is more of a red herring and distraction. The real reason is a mix of ineffective policing (which is a product of both police being bad at their job and police being afraid to do their job because of ill will towards them) and ineffective prosecution.

Those problems have led to what feels like a "decriminalization" of theft, but that's not the law's problem. I promise you, SF would still be having these problems if this law didn't exist. (Hell, the highly publicized daylight ransacking of the Louis Vutton in Union Square shows how this law is irrelevant. Very few things in that store are under $950!)