Reasons we shouldnt care or try to prevent 2012?

Because, whats gonna happen is gonna happn, if the earths shield grows 10 times stronger we will probably still get hit from an asteroid someday. If December 21st comes, and we all die, we might just be spirits in another place, or just dead with no life, leaving no though so it doesnt matter. I mean we cant do anything about it, Its Gods will anyway. "Just get your life right, by the end of the road" if we all live am gonna get me likea itouch versoion 3 or something.