You can't release domesticated rabbits like that.
Well, at least they were rabbits which are easy to foster.
There is this epidemic of donkey and mules being abandoned here.
No one wants to buy them even cheap, and they won't sell at the auction like horses even to the slaughter houses.
“The price of freedom is the willingness to do sudden battle anywhere, any time and with utter recklessness.”
― Robert A. Heinlein, The Puppet Masters