Reason this is a dangerous movie
This film sought to tell non-animal people that having animals at the center of your life is a valid choice - that that is a good and true thing.
The tragedy is that this character illustrated a small segment of the animal rights - welfare - rescue community. It depicted a woman who is tragically slipping into mental illness and made that seem normal and all right! That is horrible!
Most animal rescue people have solid relationships with people as well as love and rescue animals.
This woman was sliding into being an animal hoarder, which is a mental condition that leads to the biggest cause of animal cruelty and suffering in the country - because there are lots of animals involved and the neglect is ongoing and unrelenting. Every aspect of this character followed the criteria for identifying animal hoarders, as per the studies of the Hoarding Animals Research Consortium at Tufts.
Support those who love animals and rescue them and advocate for them. But help those who begin to act like this character. They are in trouble!
Some signs of a person in trouble:
Isolated from other people
Recently suffered a death or loss of a person
Usually women (but not always)
Usually "older" - over 45 years (but not always)
Has more animals than can reasonably care for
Physical appearance and home deteriorating in cleanliness and maintenance
Does not see - refuses to admit - being overwhelmed
Other irrational behavior
It was disturbing that she blamed the neighbor for Pencil's death. It was an accident. He did not set out to harm the dog. It was her responsibility to keep Pencil in her yard.
Help these people, don't encourage them!