This is just a variant of “both sides” argument. Both sides are not equal. There will be conspiracy theorists and quacks always, no matter what you do. It’s when you give them a microphone and any semblance of legitimacy that it becomes dangerous. Case in point: Alex Jones. The correct thing is to dismiss these people outright. It’s already been demonstrated that if you try to have a public discourse on this kind of stuff that bad actors will just come in and sow misinformation. Attempting to have such discourse merely elevates the legitimacy of the quack’s claims, since you can have the most detailed of detailed takedowns but be countered with literal word salad nonsense and still “lose” in the eyes of gen pop. The quack has everything to gain, because by getting into a discussion with someone legitimately qualified in a public arena they are placed on somewhat equal levels with that person in the eyes of the public. A standing in society they absolutely do not deserve.

By the way, Rogan himself has a few entries on Quackwatch for promoting questionable supplements that he has a financial interest in. So he’s not, as you imply and he would love to have you believe “just asking questions”. He is actively engaged in the same bullshit his quack guests come on and peddle.