Wow. So far, I'd say roaches, skeeters, extremist *anythings*, are at the top of a lot of people's do-not-want list.
That said:
Number of roaches on Earth: beyond billions.
Number of mosquitos: Megatons.
Number of extremists: Can't swing a dead cat without smacking one upside the head.
Why oh why is it, that the most horrible things tend to be the most reproductive?
Moral of the story might be, if you are an extremist, look around. You might be favorably compared to one or more blood-sucking feces-eating parasitical disease carriers -- you might be one yourself. And stop reproducing.