Ask them why MDs in Japan eat raw meat and fish (sashimi) all the time, and have no problem with their patients doing the same thing. Ask them why there are no epidemics of food poisoning from the tens of thousands of sushi bars popping up all over the Western World.
Do they have a problem with its safety? The entire Japanese culture pretty much makes that argument look ignorant. For that matter, steak tartare and other raw meat dishes are quite common in Europe. European doctors aren't freaking out about those things. They would never think to. It's a longstanding, very safe, cultural practice.
As far as the health benefits, it depends on how heavily cooked the meat it. Steamed meat has lost some enzymes and some healthy bacteria. Deep-fried meat (or char-grilled meat), at the other end of the spectrum, has lost vitamins as well as enzymes and bacteria, and also contains a lot of cancer-causing compounds, from the overheating of the food.
Your doctors need to go back to med school, once where I am the professor. Maybe their tiny fucking brains can absorb my awesome greatness, hopefully, for their sake, and their patients' sake.