Should game be more like fantasy + less like real-world war?

i agree that there should be less like real-world war...
it is because those games encourage people to act or to solve the problem by violence.
although those game can make people relax ,do what thing that they can not do in the real world..
however, if people play such game for a long time... those violence may be bear in mind and become their behaviour ....

However, i think it is no need for the game to more like fantasy..
as i think there are other ways for us to imagine.
In addition, game is just a means for us to do something that we cannot do but we want to do!
it is a place for fun and it should be look like the real would in order to fake people to relax.
because it is a please for me to feel free but we cannot do so in the reality and thus the game should be more like the real world in order to let let people believe that they are feel free in the reality....