Is there a concept of conscious despair over theft?

If you can stop them, then it's clear. If everything is going to be stolen and there's no way to prevent it, there's really room for discussion. On the one hand, it's a matter of opinion. On the other hand, the matter of opinion here is the choice of people (theoretically, they can suddenly change direction and choose the good). It's a bit like the discussion about software that has been uploaded to the Internet, is it permissible to copy and use it because everyone is doing it. Rabbi Lior wrote that it's a matter of opinion. I'm not sure he's right. There is perhaps a basis for linking this to the dispute between Tos' and Rosh regarding shooting an arrow at a vessel. If a vessel is thrown from the roof, it is considered broken from the moment it is launched. However, if an arrow is shot at the vessel, Tos' writes that the vessel is not considered broken until it actually breaks, and Rosh apparently disagrees (at least that is what the Katzvah understands). In our case, the store was broken into, but the things inside are still in place, and it is as if an arrow was shot at the vessel. And above all, those burglars are supposed to be caught and pay. That's why the items are now not considered abandoned. Whoever takes them, let them take them, and the police will try to catch them and force them to return them or pay. It's like stealing from the thief. In my opinion, it is forbidden.