Money is only part of the equation. It's pretty wasteful to have to toss a computer because one component failed, when that specific component would be replaceable in other brands.
It's not replaceable in other brands, because approximately no one is making a laptop remotely equivalent to the M1/M2. Perhaps the Surface Pro, but even that isn't a good comparison.
Remember when Apple made the first Air and it was so far ahead of every other laptop out there that Intel had to invent the term ultrabook to describe it so Asus and Dell could clone it? Yeah.
Why not?
Concerned about it in general is appropriate for governments and large companies, of course; they can make a dent.
Would you say that someone concerned about food/food-related) waste should not ever buy any food? Of course not. But don't buy food that you don't intend to eat, and don't buy food that causes unnecessary waste like food that is unnecessarily individually-wrapped.
Every time you sell a second. hand conouter you are cutting their sale of new ones.