whine whine, you sound like a pacifist bleeding heart liberal (EEEuuuuw, shiver, shiver). You can either change the game parameters to suit your concept of a civilized univervese, or adapt to the fiercely competetive but tactically inept AI. Regardless of its production or research, it does not know how to fight. It one starts getting to be a threat, prune it size 9even to making it a one city pet) or kill it. Set the options to reincarnate new civs when one is eliminated so that you can perminatly prune one that has a tech advatage and the new one will start back a few techs. If you allow one to grow unmolested it will eventually achieve a tech/industrial/size advatage the human tactics will not be able to handle and you be on the short end of interculteral darwinism.
Gaius Mucius Scaevola Sinistra
older richer & wiser than you