Quite aside from anything else, you are still setting far too much store by the people who are speaking, and far too little by what they are actually saying. Evaluate the evidence for yourself, if you can -- what one PhD says, or a Professor, or even a Nobel Laureate or two, means nothing. They may be right or they may be wrong, but who they are is irrelevant to that. The evidence speaks for itself, if you are in a position to truly listen to what it has to say.