This appears to be a redo of a similar thread. Few people reading this were around when the first, and only use, of atomic bombs occurred in 1945. Few people care to know much about nuclear weapons. There is no accurate count of who has what, but the US and other Intelligence agencies have a complete or 99% complete picture. It doesn’t matter how small a country is or that it has only a few nuclear weapons. To use a fancy term, “nuclear proliferation” has been watched for decades by those who are doing their best to keep us safe. How India and Pakistan developed nuclear weapons is not my main area of concern. But nuclear weapons are hard to make and involve components the average person has no access to.
I lived through the ICBM period of the Cold War, which is mostly over but the threat is still there. It is OK to have them. An enemy might want to use them against the US. And the enemy generally knows that any use will result in a catastrophic response from the US, so that restrains them. Sure, scenarios exist where suicide bombers might give it a try but again, supplies of radioactive materials are closely monitored. Even on the global Black Market, buying a nuke is not on the list. And if it ever were, quick action would be taken to make sure a potential seller never gets to sell one and a potential buyer never gets one.