True, but Its 100% possible for us to get knocked back into the iron age, and if that happens, there’s a very real chance we won’t be able to climb up again.
Easy to access sources of a lot of the resources needed to rebuild a modern civilization are gone, the only reason we can get to the remaining deposits is because we already have the advanced equipment to extract it. It’s entirely possible that if we get knocked back down the tech ladder, we may never climb back up again