Chiropractic has its benefits. The problem is that you can’t make a living if all you are doing is the few things that chiropractic works for. That’s why they have to make all kinds of spectacular claims about the benefits and rope you into 6 months of twice a week visits.
The Dr I went to as a kid was an MD and had a chiropractic license. He was able to reset my rib when it got knocked out from being shoved between the seats on the school bus.