Step 1: superglue
Step 2: tape
Step 3: buy new ones
High-quality gear was definitely available in the '80s, if you were willing to pay for it — and might have been cheaper in the long run.
How is this better than a set of headphones which last 18+ months? Just the NiCd battery packs were something like 20 times bulkier than the AirPods and lasted less than a third the time with careful use. Normal replacement cycle on those battery packs would be more expensive over 2 years than my AirPods, particularly if you consider inflation.
(Only 6 months out of a set of NiCds??? I got multiple years out of more than one set. NiCds are very easy to take care of; just remember that they need exercise. Always drain them fully before charging, and make sure not to overcharge.)
Could you say the same about everything that uses a battery? We could all just be using payphones.
Corporations don't exist in a vacuum. They have customers they're serving. We don't get to just pretend our behavior doesn't matter because some bogeymen (corporations) are doing worse things, then continue to voluntarily hand our money to those very same corporations.
We (individuals) bear responsibility, too. We vote with out dollars. Yes, we can't control the other 7.7 Billion people on the planet. But we can control our own behavior, and lead by example.
An average shower uses 17 gallons of water. A single pound of almonds uses 1,900 gallons.
Anyway, all this to say that I think the GP's argument is convincing.
Is this notion in your head? My electronics, especially recent ones, last many years.
Even higher income people I know don't swap out their phones and laptops every year. It's a pain in the ass to reconfigure everything, and even when the devices get replaced, the old ones get passed down to the kids or elders.
http://www.asymco.com/2018/02/27/the-number/
Perhaps low end devices are getting replaced more and more often, but I would bet high end devices get used for much longer. Especially with a widening wealth/income gap, how would people even afford to replace working electronics for no reason?