How many people played 1 hour of RL in North Wales last year?
Has there ever been a successful example of top down expansion in an area that has no RL played there?
I am certainly closer to your way of thinking. Generally, top down can only work with huge financial and media backing, and even then if has to be done very wisely (as we see with the failure of gridiron).
However, bottom-up is not practical either. In the last fifty years, I can think of few examples of that working.
The best examples we do have are of new amateur clubs, but no-one would really have identified Hemel Hempstead or Croydon, it just happened the right people were there at the right time for the right length of time. The expansion of the amateur game has been led by accepting what opportunities arise. This is far from ideal, but with little money and little exposure, there is also little choice. It therefore seems that Wrexham at the moment is the most exciting opportunity, albeit also by default.
Dally, A tour of non-rugby league areas would be an eye opener for you. Few people know rugby league exists and those that do will be stunned to learn that it i played in Australia.