Hulda Clark is another scammer, that has gained wide support from an unthinking public. Like many other snake oil salesmen, Clark has the support of many. What is missing is any evidence of benefit from these protocols.
What Clark sells is a distraction, and as long as people think they are doing something about their problems they are happy. In many cases the conditions disappear on their own and because people aer not well versed in critical thinking they make erroneous post hoc conclusions.