>>12746391
Literally nothing in your post is true.
The amount of radioisotopes in metals smelted since Trinity is incredibly tiny, why would they even be there in the first place? They didnt get into the ore in the ground. The total amount, counted in kilograms, of exploded nuclear ordnance is tiny. How could that get into significant quantities into everything? We can measure it in humans but we are talking parts per billion.
If anything old warships will be one of the most contaminated things you could find, given the testing of nuclear weapons on them early in the testing era.