Unfortunately, I believe they do. I have known too many friends and relatives that have gone to their death, believing with all their heart that maybe, just maybe, this was the only cure. And I have too many friends and relatives that believe that taking dangerous drugs (statins which is one) is the only way to control their symptoms, while leading an unhealthy lifestyle. Go figure. They just don't get it.
Although they may have their opinion, I think that some go out of their way to "warn" against all types of alternative healing. Makes me think that something is up.
So the answer to your question is..... yes and no. There was a time when I thought that all forms of alternative healing were "woo" and even dangerous. I believed my parents and doctors. Yet, there came a moment when I realized that I was on a few medications, following doctor's orders and still felt like crap. On reading about natural healing methods, well, they just made sense. And now I am pill free and healthy. Maybe these skeptics haven't reached that point.