I agree that all sectors are intertwined, yet distinct. Further their operations are segregated and that is the problem. JMHO but if the racing and gaming side of the industry were restructured into a single mission self supporting business model, that would eventually dictate the supply and demand of horses from the breeding and sales market. Essentially, in theory, the breeding and sales areas would self correct based on the needs of the sport.
Uncharted unrestrained commercial breeding is problematic and the sales companies have not effectively stemmed the flow of low end horses available for days ad infinitum at auctions. I guess the low quality horses could run thus keeping them in the game but that would mean tracks would have to invest in races for them at considerable expense to all connections. It is definitely a quagmire.
First, IMO, the game has to be restructured with a single privately held governing authority that regulates the full spectrum of what happens nationally at the tracks and wagering. The breeding and sales sectors, as a matter of course, would probably self correct on its own as a result of the sport’s demands.
Honestly though, the future is bleak. The leadership is dismal and greed is rampant. Blocked by self interested individuals and organizations no one should be optimistic that restructuring for the good of the game will happen.