Doctors have jobs because of a belief that man is afflicted by health issues and man can do something to stop it. To produce a report refuting that undermines their livelihood, so they have an inherent bias, no one should be surprised by this.

For the record, I have never thought of you as being a follower of the Koch brothers or similar. I just think you're not well trained in science. As evidence, I cite that you still haven't investigated the differences between longitudinal and cross sectional models in the context of the effects of marijuana use.