Genetic tests are classified as medical devices, a category requiring a strict approval process with the FDA [1]. The other "bullshit" products [2] you mentioned do not fall in this category. The debate should start at whether 23andme tests should be classified as medical devices instead of claiming malicious targeting by lawsuits and the FDA.
[1]http://www.nbcnews.com/id/37638671/#.UpWQiNIwrIy
[2]Acupuncture seems to help my migraines. I'm comfortable with not having a rational explanation for why it works.