... which is exactly "Razor and blades model", not sure whats your problem with this apt comparison.
People would like to buy as cheap as possible. That's unfortunately incompatible with printers business model (marketing + cheap initial printer + necessary sales later to bring in the actual profits). As you mention they would go bankrupt soon if this is disrupted, and end users won't win long term in such scenario.
So I don't really get the issue, its so hard to grok that you pay for continuous package? Why would companies building ecosystem let anybody who bankrupts them in? Apple also fights tooth and nail to keep their app store one and only monopoly. Or go elsewhere, ie I have Brother printer, not stellar but good enough, official cartridge costs 1/2 to 1/3 of cost of whole new printer. Seems very reasonable to me and I am happy to pay those 50 bucks once every year or two.
I also buy official batteries when replacing in say phone, absolutely 0 point testing stuff thats marginally cheaper and of famous 'chinese quality'. I am old enough and rich enough to understand that I am definitely not rich enough to buy cheap junk just and exactly because its cheap.