These are somehow strange and inexplicable societal values concerning crime.
A cycle blog here in Sweden recently had an article on several really simple measures that could be taken to help curtail bike theft (which is epidemic) but neither the police, insurance companies or reselling sites were interested in their suggestions. Bikes can be worth the equivalent of thousands of dollars.
Last week I was walking into a grocery store when 4 police were arresting a guy who looked very dejected, and I asked an assistant what had happened she said he was caught stealing a piece of meat.
Police do not necessarily reflect the values of wider society, they may have their own values. Ranging from anti-cyclist prejudice to simple workplace laziness - I suspect the grocery guy was caught by staff and all they had to do was take him away.
"...food-delivery workers returning home after their shifts have been violently attacked there for their bikes: by gunmen pulling up on motorcycles, by knife-wielding thieves leaping from the recesses..."
Those are crimes that carry multi-year prison sentences.
My adopted home of Singapore seems to handle this really well.
There's always stories of people leaving there wallets and phones to reserve tables at the food court. Without any issue.
But yes, it’s definitely a low crime jurisdiction but I don’t think enforcement has that much to do with it.
It seems like the root issue isn’t the catching but the recatching. If you want to nearly eliminate it, punish it like Singapore does. I don’t think we have the will to do that (in fact, seem to be heading in the opposite direction), so police will continue to catch the heat for how much property crime continues to happen.