And what if the Europeans do not let them?
If the camps are deteriorating that fast, they are being sabotaged rather than merely neglected.
The camps are made of wood. The pyramids and the parthenon and etc. are made of stone.
Stone does not.
It’s not a conspiracy.
No, age is the problem. In America thousands of temporary structures were built during WW II. They had a short design life. Some are still around, there, but decaying.
We have many many US Army forts, some built of stone and brick that mark the progress of the westward expansion. Today, they are but ruins. Many are in Texas and mark the Forts trail, a really great trip. Another is Fort Union in New Mexico. A grand quartermaster post of some size, it was brick. Today it is ruins and foundations.
The concentration and POW camps were much less substantial. It is surprising if any thing but the concrete crematoria and perhaps the showers are intact.
Then there is me...... child of 1942. I’m here but showing my years.