Fine... I agree in principle with your concerns... have you seen this version of the film?
I'm not quibbling over the symbolism, however I had read another review and it sounded like Peter Jackson's treatment (a remake of the original) had added more monsters and moved away from the overt message you stated, into more a monster-movie.
I'm disappointed to hear it still 'sells the same message'. I want to see it due to Naomi Watts (and she isn't your typical blonde bimbo starlet)... I'll report back when I've seen it.