Then why don't they? Barely any players have switched to league in the last few years. They're just not doing it. Less NZR juniors are going to league now than during the Holden Cup years.
You might not like rugby, you may think it's a boring game, but the kids playing the game in NZ do. Lots like and play league too, as we generally don't have your us/them mentality, but the lure of the ABs is bloody strong. You may think playing for the Bulldogs, Storm, Warriors, Cowboys is the greatest thing ever but it's not to young NZers.
Seriously mate, you need to grow up if you think that providing facts about the game in NZ while at the same time liking rugby means someone hates league. I love league (I hate origin though), played it every Sunday for most of my childhood/teenage years. I discuss it with people on here because they're talking rubbish and burying their heads in the sand.
I want league to be successful in NZ because I don't see it as a zero sum game. League and rugby can exist side by side. But let’s be real here league is in the doldrums in NZ. I'd be happy for NZ to get another team, especially if they operate as a NZ team unlike the Warriors, but that's not going to cause the death of rugby in NZ which posters on here seem to think it will.