Its all well and good buying what you can afford to skip should it fail, but for most people their income doesn't allow them that luxury. Most people will expect to get at least 5 years of work out of a product and even then, it's still a struggle affording a replacement.
Yes SMD stuff does not lend itself to easy repairs, but it does not have to be that way. It is still perfectly feasible to use modern manufacturing techniques and still be repairable, it just takes the makers a little effort to put together some decent service manuals with some typical failure modes and what to look for to determine what has failed and then to make these parts available at a sensible cost and timeframe.
It is not good for the planet to be skipping so much stuff simply because manufacturers can get away it in the name of profits and no government is going to bring in laws to change it because the politicians often have vested interests in these large companies for their own personal gain.