I think you need to take a few steps back and really think about what you are asking. If your husband is a fan and regular listener to a source you are so adamant against, that even giving him a view is a concern, then do you and your husband have the same values?
I am so sorry to say this but your post is just littered with red flags. Sis, he isn't hard to argue with, the man just doesn't care what you think. If he did why isn't this a discussion and not an argument where he shuts you/your concerns down? I would say that making yourself informed about the specifics of Joe Rogan matters more than his view count going up by 1. But frankly, you probably aren't going to like anything you hear (Because Rogan is a pig who washes conspiracies/bigotry as "just debate lol"). But since your husband knows you won't approve, that is why he is brushing you off.
This sounds like a really rough position to be in. I've been there with some of my past relationships so I am sending you all the warmth and strength I can muster! Big hugs!