I feel like they already solved the problem, or got damn close to it, with Crunchyroll. A single service where you could pay an affordable fee to watch new shows, in some cases within hours of their Japanese television release, without the tedium of torrents or the Belarusian viruses and sketchy ads from pirate sites. But even before antagonizing their audience with that CalArts cartoon about the witches (what was that thing called? Spice Witch High or something?) there's the fact that everyone and their dog is starting a streaming service now and both Sentai and Funi took their balls and went home, and I think that fragmentation drives some percentage of fans to say "screw it, I'm not going to subscribe to all of these services" and back to piracy.
Given that they know they have an audience which historically has been quite swashbuckling, I think if western distributors could unite on one service (it doesn't have to be Crunchyroll), it would help tamp down on the incentive to pirate both now and in the future.
Oh, and stop antagonizing fans. That too.