Wait, wait, wait.... I think that the new genres emerging wil vary the market, but there is nothing wrong with a little Xenaziombie Killing either. You don't like those games you don't have to play them. There are plenty of games for all to enjoy... unless you are an Alien, Nazi, or Zombie, but nobody is sticking up for them.
I like Puzzle league AND Call of Duty. I like Action Movies, Chick Flicks, and Dramas. You don't have to polarize large segmants as good or bad, just take it as it comes. Even the less than stellar, or the out of your genre can have redeeming qualities.
(Edit: I used the term chick flick, not to demean women. I meant it as a movie marketed to women through broad generalizations about what mostly male dominated movie studios think women want, I find some of these movies have entertaining out-look on society. I added in this, not to avoid offending anyone, to demonstrate the depth of variety that we see. They make a game like Nintendog to get girls gaming, but there are many males that play it, most companies don't get it. Nintendo stumble opon it by accident with their "girl game" and older gamer experiments: They are games for everyone. I don't think many homemakers are playing Cooking Mama.)