Can't agree Griff. Soccer looked after itself and got on with developing their game. It wasn't their job to help RL but they didn't actively try to kill it. They never banned RL clubs from using their grounds nor ban players. Whereas RU did and more besides.
No, soccer did more than just develop its own game. It went out of its way to restrict the growth of a new code of professional football, prevented the growth of the game outside the heartlands and actively sought the same spectators.
It's misguided to believe soccer to be blameless and lay all of our ills on the door of rugby union.
Of course, rugby league's biggest enemy was, and is, itself.