Yup, you're right. The balance in nature has been ruined.

But the problem of removing wolves from the park is an altogether different one. USDA predator killing of wolves can also be related to animal farming e.g. when wolves turned to beef-eating, Washington Department of Fish and Wildlife had issued an order to kill all of the U.S.-British Columbia pack. The problem you cited of coyotes and bears coming into neighborhood too is responsible for more wildlife killings. This problem of shooting / hunting of animals by terming them vermins exist in my place too.

But I appreciate your concern of serving chemical laden food to dog as raised by you in your first comment. This is a problem with almost all processed and packaged food ...including the ones sold for humans. So it's always better if you can prepare your (and your pet's) food fresh in comparison. I hope @jerrybanfield will prefer the same if given the choice.

My answer was actually in response to your replies and links in your later comments. Perhaps I got you wrong. Thanks for reading it anyway!