[yourcelf]

Indeed -- the demographics of Montana in particular are overwhelmingly white[1]. As of the 2010 census, 89.4% white, 6.3% native (many of whom live in one of the seven reservations Montana has, rather than the "star" towns of Billings, Bozeman, and Missoula), and less than a percent each for any other races. The state also has only just over a million people total, so there are about 4 times as many white people in New York City as there are in the whole state of Montana.

This isn't to excuse the white-washy-ness of the video (e.g. lots of cowboys, no Indians), but just to say that the problem is at least a couple of levels out from just this video.

[1] https://en.wikipedia.org/wiki/Montana#Demographics