Rational constraints on the use of metaphor

In a country that can’t engage in rational discourse, it is understandable that there are no rational constraints on the use of metaphor. Case in point: “LA ‘on the road to Falluja’?” – BBC dot co dot UK

The LA murder rate is going up and the police chief has requested more officers. But California is broke and cannot afford to recruit.
Civil rights lawyer Connie Rice warns that with too few officers to “police humanely”, parts of the city may as well be in Falluja.

I agree this is a problem, but what does “may as well be in Falluja” really mean?

Of course when Matt Drudge posts the link to this article it says, “GANG WARS: Lawyer claims L.A. is ‘on the road to Falluja’…” and the too-few police in LA are equated with Falluja? This is misleading and intellectually dishonest. But hey, it sells ads because it gets people to click away!