Not all cats have Toxoplasmosis. According to your last article, those who do might shed oocytes for about 2 weeks when stressed as kittens (so killing mom=more oocytes released--you won't find the kittens until they starve). Eradication of cats will not eliminate Toxoplasmosis when there are birds, rodents, pigs, and people who carry it, and it is also transmitted by eating infected meat. I often see birds cannibalize other birds, and I know seals WILL prey on birds or rats given the chance. Incentivize spay/neuter so people stop dumping pregnant/unneutered animals and feral cat numbers will be cut in half within 8 years.