Man, big cities suck.
I lived in NYC in the 90s and I once saw a delivery driver stealing a complete POS delivery bike that was locked with a u-lock. I'm sure it was a basic u-lock. Anyhow, in the middle of the day on a busy street, he was hammering the heck out of the straight part (shackle?). Eventually, after about 20 or 30 blows, the shackle broke clean from the U. Later.
All this while many people, including me, walked by without so much as a, "what are you doing?".
Unfortunately (well, not really), nobody is willing to risk their life to protect someone else's property. You never know what these POS MOFO thieves are capable of, aside from stealing bikes.
I ride nice bikes to work and certainly take a risk every day. But I doubt that kind of stuff happens in my world.