Because the European Project is one of the most important in my lifetime. It has enabled close links between European COUNTRIES and people, it has provided a safe context for Eastern European countries to become independent of the USSR (which we landed them in after WW2, it has increased standards (environmental, social and economic), and Europe is a wonderful, diverse yet very connected place in which we can move, work and play. We are far more alike than we are to the USA despite language. What on earth can we invent that is better?? Brexit is the most crazy, destructive idea, and will result in a poorer UK in all respects.