And just as many like to build a city to have done it. Look at Minecraft. Sold over a million copies and there is ZERO purpose in that game.
It seems sandbox games are not your type of game if you can not find your own purpose / goal within the a game. A sandbox game is about giving you limited tools and letting you play with them and craft what you with within the tools at hand. In this case we are given a world where we CAN war if we choose to or we can shape it how we want it to look within the confines of the tools at hand.
Sadly it seems alot of people are use to themepark games and must be hand held and told exactly what to do and how to do it. Xsyon is a sandbox or as close as we can get right now. We are given some general rules and the tools to shape the world as we see fit. People can goto WAR if these choose or they can be the suppliers of the people going to WAR or the ones that protect the land, ect.
From your posts it seems Xsyon is just not the game for you. And thats ok, not every game is for everyone and theres other games out there in the sea for you to goto. Maybe DFO or MO or Earthrise or a number of others.