You greatly underestimate the convictions of those who foster abused and abandoned animals.
Several months ago 21 Ibizan Hounds were taken from horrible conditions in NE.
Within weeks, these rare and difficult to place dogs all had either loving foster homes or permanent homes.
Most of the dogs were "problem dogs" due to the mistreatment and neglect they'd suffered.
Not a single foster care provider griped or gave up on them.
The dogs went to every region in the US, all of it paid by those who rescued and fostered/adopted them.
Kipling warned us not to underestimate the power of the dog.
Starving dogs will revert from their temporary "pack behavior" once fed.
The few exceptions to the problem may be the "trained" pit breeds.
Those dogs were doomed for life by their owners right from the start.
It's not their convictions I'm underestimating...
One or two dogs is a whole lot different than the entire population of a CITY and STATE.
Every shelter in every state is full. Most of them will end up euthanized. Have you ever tried putting a scared, unfamiliar dog into a helecopter with no doors? guess what happens when it bites the soldier and he lets go of it at a few hundred feet above the ground.