Blaming consumers for choosing price over longevity is like blaming water for flowing downhill. Both phenomena are perfectly predictable, so there's really no one with agency to blame there - just like a bunch of water molecules can't reverse the flow of a river, a bunch of consumers won't change this dynamic. Instead, one should focus on those who willingly profit off such phenomenas.

Now, you could argue that with sufficiently intense competition, companies will keep outdoing one another in selling cheapest crap. That indeed is a predictable and well-known failure mode of the market economy. The question is, whether appliance market suffers from too intense competition, or if there is a place for a lifetime-appliance supplier there.

If there isn't, then IMO a good solution would be extended mandatory warranty periods (25+ years) and/or requirement to use user-servicable components and release full schematics when company goes out of business or cancels a product line.