They haven’t damaged anything. They just bait the news into writing publicity for the cause and it works because people believing “they damage an artifact” generates clicks.

People have publicly killed themselves to to make people pay attention to the biggest challenge humanity has ever faced.

Such is unaffective because news doesn't cover it.

The chemicals in our rain from industrial waste that will wash these stones clean, do way more damage. But you don’t know that because not enough people talk about it.