I have a degree in bachelor's degree in plastics engineering and I have a master's degree in biomedical engineering with a concentration in manufacturing (which included tons of research in biomaterials), so I understand a lot about materials and how they interact with the body as well as how plastics react in the microwave- and a ton of that stuff you posted is easily contradicted and I can pull up tons of chemistry and polymer science, physiology, and biochemistry to stake my claim. But with cancer in your family, I can understand your concern. Cancer is hugely genetic as well. There is a lot we don't understand and scientists/doctors have to grasp at whatever makes sense, even if it doesn't- like plastic "leeching" and the microwave.