The sophistry in Lundberg's argument is not a credit to him. He is the editor of The Explore North blog and several other sites so it would be surprising if he does not recognize sophistry when he sees it, yet his argument is so puerile it is embarrassing to read.
Yes, they {sled dogs} live much of their lives tethered to their dog houses - how is that any worse than the way much of the human population lives?... Sled dogs get high-quality meals a couple of times a day - how many million people in the world can only dream about being that lucky?... Terry needs to focus on the problem that he knows well from his years working with the Mae Bachur shelter - people who refuse to spay or neuter their animals. How many sled dogs die each year doing what they love to do compared to the number of dogs who are ploughed under at the Whitehorse garbage dump every year because nobody wants them? How many who do survive end up on apartment balconies or tied in backyards with no exercise, minimal food and no love??
The argument that two wrongs make a right (there are suffering humans so no one should complain about suffering animals) is not very bright. The age of reason starts at age seven, but not for everyone apparently.
The level of Mr Lundberg's argument is echoed by his supporters such as kanoehead. The tide of intelligent opinion is not in Lundberg's and his supporter's direction. Someday there will be no dog-mushing. That will largely be due to people like Terry Cumming and to the internet.