Is her claim that most cancer and other diseases are caused by mycoplasma accurate?

This is not accurate. The culprit here is viral. The issue of mycoplasma is a red herring and again this is an example of disinformation to misdirect seekers of truth down a false alley and is a time-honored strategy of the Extraterrestrial Alliance. When they divert critics into chasing phantoms it not only keeps them safe from deeper scrutiny in their manipulations but is a great source of amusement, watching humans run around in circles and never find the truth of things.