You're clueless mate.
The broad strokes of it is that their initial financial troubles during the 80s were largely because they were still carrying heavy debt from their time in Melbourne, which they eventually succumbed to in 85, and were forced to sell the club to Geoffrey Edelsten.
In an attempt to transform the club into a successful glamour club Edelsten massively overcommitted the club financially, which both got people through the gate and the team into the finals for the first time since moving to Sydney in 86 and 87, but was totally unsustainable, and in 88 they effectively folded again and the VFL was forced to revoke their license.
The AFL were then forced to quickly sell them onto another consortium that didn't really have the means to support them out of a necessity to find a new owner by 89, which, broadly speaking, was largely the source of their financial issues in the early 90s. They then folded again in 92, the only really serious bid for the club came from Canberra, but the AFL weren't interested in that and decided to run the club themselves.
In other words the Swans financial issues were largely because of a string of bad business decisions, and had very little, if anything, to do with RL in the grand scheme of things.
The Waratahs was the name of NSWRU's representative side until the brand was used for the NSW based Super Rugby side starting in 1996. In other words they effectively didn't exist in their current format until 96, thus couldn't have gone broke before then in the 80s and early 90s, and they're totally irrelevant to the discussion at hand anyway.
I refuse to play the whataboutism game with you, but if you want to continue to be totally wrong about the Swans then go right ahead.