Callistemon, farmers just supply what we demand. As demand falls, they diversify. Omnivores have a (vast) choice in what they choose to eat. Farmed animals have no choice.
At least, we can hope that's the end for mink farms. It would be unwise to create those same conditions again, ready for the next pandemic.
It would seem sensible to stop crowding any animals into factory farms - for the same reason.
“In fact, if one person is unkind to an animal it is considered to be cruelty, but where a lot of people are unkind to animals, especially in the name of commerce, the cruelty is condoned and, once large sums of money are at stake, will be defended to the last by otherwise intelligent people.”–Ruth Harrison, Animal Machine