hmm, now I by no means suggest these stats prove anything as there is a ton of variables but just as counterbalance to your argument..... Bears had roughly 10-12k active fans attending in the early 90's before SL and then their demise.
Roosters crowds have gone from 9-11k to 13-16k since the demise of the bears
Balmains went from 7-9k to 12-17k as Wests Tigers in that period
Manlys hasnt changed but they play a t a sht ground thats hard to get to so not surprising there
And you could argue booting the Bears created space for GC which is avg'ing 13-14k and has ppotential to be a lot bigger, so more than we lost.
If there was a big exodus of Bear's supporters to other clubs ,they don't mention it in forums.It doesn't show too any extent in Manly/WT or Roosters.Yes there are the odd ones.
Now we have in addition to union,fumbleball entrenched in Nth Sydney.
To say people don't turn off is BS IMO.Geoff Prenter editor of the Famous RLW magazine and staunch Dragons fam left the code ,when Murdoch took over with SL.
And you should know Micheal Parkinson well know interviewer and Yorkshire man, turned off rl when SL happened.
Roosters have been in the high end of the ladder.Stand alone club not merged with no juniors so to speak.
West Tigers is a combo of two clubs ,and it can be argued as such they should be averaging more than the current average 15,867 in 2019 before COVID.
Manly will have an improved ground and they average 13,777 in 2019 at that sh*t ground.
Dragons(joint venture) averaged 9,813 in 2019.
Sharks 12,224 in 2019 which though not brilliant not much less than most of the Sydney clubs.
Penrith 12,482 average 2019
Souths 15,601
If most Sydney clubs averaged 25K and a couple 10-15K there's be an argument
Yet in 2019 Cows averaged 13,658 with their catchment area, not brilliant
Titans 11,587 with their great stadium in 2019
Brisbane with the whole of Brisbane and a RL city averaged 29,516.Population in 2016 2.28m.
Melbourne with their huge success in a 1 team city closing in on Sydney's population 18,230.
Canberra 14,864 in 2019
Yes it's important to have a national spread, never have I suggested otherwise.
But don't kid yourself nor continually bag for non crowd performance in Sydney,when on a pro rata pop. basis they are pulling their weight.And it can argued some of the Interstate clubs could be doing a lot better.You have to look at the historical high crowds at some games in Sydney as an extra factor.Such as local derbies.