Readers reply: Some people want to break up the EU. Why not break up the US?

The long-running series in which readers answer other readers’ questions looks at secessionary movements on both sides of the pond • Answer the latest question: What is the true Breakfast of Champions? If it’s wrong, as some would say, for European countries to come together as a fully federal European Union, rather than individual states, why is it right for the US to be a federation rather than separate states? It always strikes me that the EU gets unfairly criticised for a system that was ...