Sure, but there are far fewer people in the ocean than there is on land, and very few people will ever interact with a shark, knowingly or unknowingly. Sharks mind their business for the most part. It's not a good comparison. The domestic animal argument works just fine. Pits do seem to hold the title for fatal domestic animal attacks.
It's not as disproportionate as you think. Over 40% of the world's population lives within 50 miles of the ocean, and over 70% of the world's shark population lives & roams within 10 miles of shore.
But that isn't really the primary point of the analogy, is it? You missed it, too, lost in a secondary parallel. The point is that we don't measure the absolute danger presented by a distinct population to assess whether or not it is appropriate to develop special restrictions and laws governing that population.
For example, moving to humans, what about convicted




philes? There's nearly 700K of them in the USA. The vast majority of those live outside prisons. We know that sex offenders against children have among the highest rates of recidivism of all criminals. Once a diddler, always a diddler. Due to this, they disproportionately wield a huge threat to our children relative to all citizens who haven't yet been convicted of an offense; fortunately, most never will...but
some will. However, reminding ourselves of the
Minority Report moral lesson, just because we know they are the
most likely to be victimizers in the future doesn't mean they
will be. Furthermore, similar to Pit Bulls, probably somewhere close to 99.9% of them won't commit a sexual offense this year.
Naturally, we force them to be committed to special registration lists, to warn neighbors of their history, to not let them have certain jobs, to not let them live within a certain distance of schools or other locations with concentrated populations of children.
But let me ask you this. If these criminals weren't humans, that most special group of self-conscious brethren of our unique species capable of change, remorse, and our considerations of humanity, and the soul, but instead this group were mere
dogs, as much as we love dogs...what do you think we'd do about this population? What would
you do?