I have no idea what point you are trying to make or why you are being so sarcastic to me and other people you replied to.

A parasite doesn't stalk and hunt the same way a predator does prey. In this case, the larvae infect tiny fleas, which are then consumed by people and other animals drinking unfiltered water. It doesn't have a brain, as such; just a nerve ring and some sensory hairs that cue it to start eating once it is in the right environment.

I merely seek to laud your refined sense of responsibility and duty, and to express wholehearted agreement that humankind is the most vicious of creatures, unrivaled in the infliction of suffering.

Were you to provide yourself as a host to these poor and unfortunate organisms, you would doubtless attest that their impact upon you pales to insignificance compared with the misery imposed by our species.

Since I never expressed such a point of view, perhaps you should look for some other well to poison.

Because sweet truth flowed so freely in your waters already.