This is a simple question. How many times does someone labeled as an "expert" in a field have to be proven completely, totally, and unequivocally wrong, stupid, or deceptive in everything pertaining to that field before that person is no longer considered an expert?
Let's say your son or daughter tells you a story about his or her college physics professor. Forget your outrage over the obscene cost of tuition today, just go with it. After all, it is just a meaningless hypothetical.
Your kid tells you that one day Professor Redstate Drinkhard attempted to make it perfectly clear to all his bright eyed students that "gravity" is a myth cooked up by Liberals and pushed by America's elitist intellectuals to dupe the public into surrendering their God-given freedom to allow corporations to operate unhindered in a free-market, and to force unwarranted, tyrannical interference by the government in the private affairs of legitimate businesses.
To demonstrate, Professor Drinkhard took an egg and walked the entire class to the window of their fifth floor classroom and attempted to test his theory. While holding the egg gently between his thumb and forefinger outside the window, he explained that gravity was indeed a fact. He insisted, however, that gravity only exists in other nations of the world. Gravity did not exist in the United States, or for U.S. interests anywhere on earth. He assured them that this was a fact and he would prove it. He stated with absolute certainty that, once released ,the egg would remain suspended in mid air.