Not caring about animals leads to not caring about nature in general and that is leading towards us destroying earth ecosystem and making our planet not be able to sustain human civilization.
There are some philosophies which teaches that everything was created for human. It was and is good excuse for exploitation of nature. No wonder we have climate change now.
It does not help that those philosophies are also very closedminded and very agressive towards any new ideas or any changes to their worldview and lifestyle.
I know Christian philosophy teaches that, because it's in the Bible. What others?
"The very notion of the domination of nature by man stems from the very real domination of human by human."