Sometimes you do not have to be right it’s best to be quiet. Some people are inflexible in their thinking. They think that their way is right regardless of any information or scientific proof that they are wrong in these cases it is best to be quiet.
Do not waste energy on people who are never wrong or when proven wrong make excuses why their findings were unfairly skewed. These people are a time waste and drain on your resources and thinking. It is futile to think that you can change their minds. However, you can change your role in this scenario. You can decide to be quiet and let the natural law take its course.