There are some products that buck the trend for a couple of your points:
Repairable phones - https://www.fairphone.com/
Repairable laptops - https://frame.work/
I have a framework 13 and absolutely love it. Not used a Fairphone yet, and I believe the latest model might have sadly scrapped the 3.5 headphone jack, but will still be a strong contender when I next need an upgrade.
Thank you for your well written comment. More importantly, thank you very much for your work as an educator.