Women's sport isn't rubbish, it's just marketed to the wrong people.Mate, the pre-existing support base is where 95% of NRLW supporters are going to come from irrespective of where they play these games. The fundamental problem is that women's sport is rubbish.
Look at the AFLW, those first and second year bumper crowds have fallen off and now the vast majority of games have attendances between 500 and 3000. Just like when roller derbies reignited around 2010 and the crowds quickly dissipated when the novelty wore off or people no longer felt obligated to go. Males watch AFLW more than women do because even women don't give a shit about women's sport.
Both, e.g., pop and metal have their niches within the music market, but imagine the reaction if you took a metal band and put it in front of a major pop act's audience... Most women's sports have effectively put themselves into that position of being the metal band trying to open for Rihanna, and as a result they're being booed off the stage and failing to carve out their own niche in the market.
What women's sport should be doing is targeting pre-existing niche audiences that aren't serviced by the major men's competitions in their sport, and using those audiences as a base from which to grow.
Take the AFLW for example; imagine if instead of launching with the teams they did, the AFLW's foundation clubs had looked something like this-
1. Fitzroy FC
2. South Melbourne Bloods
3. Norwood Redlegs
4. West Perth Falcons
6. NSW team
7. QLD team
Sure, that league probably wouldn't have drawn the fanfare that the AFLW initially did in 2017, however it wouldn't have suffered from the novelty effect in the same way that the AFLW has, as to those fanbases the AFLW would be largest exposure that their club's get. In other words, to those clubs/fanbases the AFLW would have been the headliner, and not the opening act that it is to the average AFL fan.