Actually he does kind of have a point::
The USAGE section of that wikipedia article mentions that::
"The term Eskimo is still used by people to encompass the Inuit and Yupik, as well as other Indigenous Alaskan and Siberian peoples. In the 21st century, usage in North America has declined. Linguistic, ethnic, and cultural differences exist between Yupik and Inuit.
In Canada and Greenland, and to a certain extent in Alaska, the term Eskimo is predominantly seen as offensive and has been widely replaced by the term Inuit, or terms specific to a particular group or community."