The quackness of chiropractors depends on where you are, in many places it’s indeed just a type of physiotherapy, or better put you have to be a physio to be a chiropractor. Similarly, in practically all of the world osteopaths are quacks while in the US they’re doing evidence-based medicine with particular philosophical accents.
…the dissertation. Which means years of being at a university, though granted it’s unlikely to be 25.
Feminist Hacker Barbie is the proper meme response to that and that’s 2014/15, but chuds tend to live under rocks so that might explain it.