I can maybe answer some questions.
In Japan, After Max M left I am told a following JRL president made some bad decisions which affected the running of the comp. I am not clear on details beyond that.
There is also difficulty in getting grounds, in 2002/3 when the Tomahawks were going to tour, there was not a single public ground that was willing to let Rugby league use it for the international and we had to rent a private, and very expensive ground. this was a common problem, not being able to get grounds.
Rugby union teams, often run by companies or with good commercial links, attracted the Rugby league players.
And finally, lack of inbound tours. I am more forgiving of the AMNRL than most here have been. I was on the tour in 2003 when we won the North Pacific Club championship, and they did look after us paying for accommodation and some meals and a lot of internal transport. They are also very happy to have Japan tour. Many other countries have not invited.
With regards to development in other countries.. Take, as an example, Lebanon. There is now a league there, but I thoughthe first Lebanon team was pretty much all Australian. I think the same for Malta and if all goes well, Portugal. How many players of Japanese decent are there in the NRL as compared to Greeks or Tongans? I am not saying Japan should rely on Australia to supply players or to start the league, but understand that the JRL starts several steps behind.
Next point, yes a trip to Japan for the AMNRL is nowhere near as challenging on the field or as easy off it as a tour to Ireland. But by that logic, no team isolated by distance will ever be toured. Very limiting to a sport.
But I am sure all this has been discussed in a different thread.
good luck to the JRL and the Tokyo Warriors in talking other teams in to regular competition, hopefully one merit league can come from this. and hopefully, most of all
more Japanese can be persuaded to take up the game.