I-Like-To-Bike, your position is cleary understood from the majority of your posts. What is not clear is what scientific studies you are basing your points on.

As you said, one can say anything one likes; that doesn't make for a credible evaluation of risk. Even one single scientific study does not prove anything; it takes several studies that point to the same results to establish credible scientific evidence.

Please post the scientific studies that justify your position.