Agreed. I lived in a houseshare a couple of years ago where the housemates didn't want to chip in for contents insurance.
At first I was shocked, and thought about paying the whole house premium myself, but then I actually thought about it properly for the first time and realised that the sheer difficulty of removing and reselling my mostly quite heavy valuables (things like TV, drumkit, etc) and finding/sorting though even the smaller ones scattered around the place, would mean that any burglar that did get in would probably just decide to leave it. It wouldn't be worth the risk, effort, or arguably even their time.
I've not thought twice about contents insurance since. It's probably a product that makes no sense for a significant proportion of people (when you're renting and damage to furniture/appliances etc is covered by the landlord's insurance, of course!).
Abandoned premises are a whole other thing. If the burglar has no worry that the occupants will return, they may try for more ambitious scores, such as removing the copper water pipes or condenser coils, or ripping up floors, walls, and ceilings looking for hidden caches.
2-sided Abloy Protec 2 elite, locking-thumb-turn deadbolt on a metal door with a metal frame.
That's fine, though. If you make the lock on your front door more secure, the weak point is now the latching mechanism, the door frame, or the door itself. Or perhaps it is your sliding patio door, that can be levered. Maybe you left a window unlocked. Or your garage door has a code that can be MITM'ed or brute forced.
The thing that saves most people is that there is really nothing worth stealing in their house. If a fence pays 10% of retail for stolen goods, I'm not certain there is any single thing in my home worth more than $25 to a burglar, other than the emergency cash. Rather than take the TV or any of the decade-old cap-rot Dell computers that have been re-capped, someone would be better off stealing all the meat out of the fridge, because at least they can eat that.