There should be something done to protect the public. SDN doesn't care because the majority of them live in a medicine bubble, I would wager the majority don't really know what a naturopath is, let alone interacted with one. NPs however, they have experience with in the workplace or exposure to their education and training at some point. To the average med student, naturopaths and chiropractors are not a threat, whereas NPs are seen as such.
There's not outrage against quacks because
1) The majority of the public are ignorant of differences between persons calling themselves health practitioners, practical access to evidence & data, and science/medicine in general.
2) Many have the appeal to nature fallacy, thinking that if a therapy has a natural sounding name or have been told it's ancient then it will be safe and ideal.
3) Only a subset of the population seeks out quacks, mainly affluent people who aren't sick at all, and desperate people turning to it as a hail mary. The affluent are just wasting their money, but would probably waste it on something equally useless to tell themselves they have a "natural" lifestyle, and as long as they only get is winter colds, fatigue, and GI symptoms from eating too much, there isn't an imminent danger (and confirm in their minds it's "preventative"). Those with cancer and other terminal or chronic illnesses is where my blood really gets boiling, as many of these desperate people dump as much money as they can into these charlatans, ending in emotional and financial devastation.
4) While there are quite dangerous pseudoscientific therapies, many of them have no physiological effect, but because there is no effect the body also don't produce any side effects. If a naturopath gives someone 10x the dose of ginger oil, homeopathy, or aromatherapy, the patient won't even be able to tell. If the NP gives 2x the dose it can kill someone.