No, the Large Hadron Collider (LHC) has not destroyed the world yet. It has been operating since 2008 and has not caused any major problems. In fact, it has made some important discoveries, such as the Higgs boson.
There were some concerns that the LHC could create black holes or strangelets that could destroy the world, but these concerns have been largely debunked by scientists. The LHC is not powerful enough to create black holes that could pose a threat to Earth, and strangelets are also very unlikely to be created.
The LHC is a very important scientific instrument that has the potential to teach us a lot about the universe. It is important to remember that science is a process of exploration and discovery, and there is always the potential for unexpected results. However, the LHC has been operating safely for many years, and there is no reason to believe that it will destroy the world.