I had an opportunity to see the real chargeback data for this type of content and it is not high. It's low. If any bank says they are refusing service because of chargebacks they are lying and using that as an excuse to cover some other reason.

I also remember a story from someone I worked with in the 90s. At that time there were adverts in the back of newspapers for VHS tapes, very cheap. It would say "Get these 8 HOT VHS tapes for $4.99 inc shipping." People would call up and order on their credit card. The reality was the company would only send out a handful of these packages and then claim to be out-of-stock, then they would mail a refund check out to everyone else. The check would be from BIG TITTY BUSTY WHORES LLC or something. Literally nobody would cash the check.