From three to 434 oocysts per square foot, that remain viable and infectious in the environment for from 1.5 to 4.5 years is not "minuscule."

And your hyperbole and deflection tips over into the absurd.  Incinerating toxo-infected feline carcasses and feces to at least 157 F destroys the oocysts.  Not necessary to destroy big cats in the zoo, which unless they've been exposed to free-roaming house cats probably don't have it anyway.

Nor is it unrealistic or unreasonable to OUTLAW possession of invasive felines from the Islands.  HI already does this for snakes, many species of which are valued PETS, BTW.  Just as mongooses are outlawed from the mainland because of their potential destructiveness should they become invasive.  When I was a kid US zoos couldn't even have them.

So your absurd objections are so much bakwa'as--that's Urdu for the steaming, squishy odoriferous nitrogenous material that intermittently plops from the south end of a northbound male bovine mammal.