I'm sure your comment is made in good faith and I agree with it (in meaning), but this:
> because people as a whole are incredibly intolerant to any friction in their lives
...somehow makes me picture you saying it with a smug expression and instantly dislike the whole comment. Maybe it's the broad, catch-all "because people" generalisation, I don't know. But again, I agree with the comment... in meaning ;(
The phrasing could have been chosen better but the meaning still stands. Amongst all of the valid and accessible options for weight loss, society will without a doubt choose the weight loss pill/shot bar none. All for the simple reason of minimizing friction above all else.