Poor economies (think underdeveloped economies) do incentivize repair over replacement. Cases in point, cars in Cuba, Former USSR republics, etc. You will also find repairshops for electronics in many developing economies as well. Labor to repair a unit makes a repair affordable whereas buying a new unit might be prohibitive.

In developed nations, labor is too expensive to make a repair worthwhile for things people can regularly afford. It's only as things become expensive that repairing something makes economic sense (a $100 replacement screen for a phone is economically viable vs buying a new $600 phone). Conversely very few people in the US for example would think of repairing an old Microwave when buying a new one is only marginally more expensive than getting a new one.

Unless you can find repairpeople willing to work for a great deal less than minimum wage it's going to be hard to make this work on most gear. Labor alone is enough to kill repair efforts. Even if corporations tried to make more repairable gear it wouldn't help if labor is still too expensive to make it worth it. (And if that's true, then making the gear less repairable and cheaper becomes a rational response to the market rather than a conspiracy.)

Sigh. I disposed of an otherwise perfectly good 49" television last week because something on the IR receiver board failed. What leads I could find for a replacement board (a) had them listed around 50% of what a comparable replacement television costs today and (b) didn't actually have any to sell me.

Upside, I now have a much bigger and nicer TV that was 40% of what the old one cost.

Sales tax that is exempt on parts?