Whether a chiropractor, acupuncturist or naturopath is a quack really depends on who you ask. Chiropractors and acupuncturists are both health care professionals in the eyes of the law and are each organized into an Order in Quebec, while naturopathy is not.
If we turn to this American medical doctor, we hear her speaking quite negatively about chiropractors. In her eyes, they are all quacks. Her opinion is anecdotal, though she provides some sources to uphold her position.
You may notice that she intentionally turned off comments to avoid engaging in a discussion.
It also bears mentioning that chiropractors in Quebec do not fit the definition and the work as portrayed in this video.
That is not to say her entire critique is wrong, but it is strongly biased and fails to address the fact that chiropractors are well-suited for a much wider range of conditions than those presented in this video.
She has a series of other videos that touch on acupuncture, naturopathy and other modalities. Because naturopathy is unregulated in Quebec, there is a considerable variation in how they approach clients. As such, her critique is largely not applicable to AQTN Quebec naturopaths.