Ah, the insanity of the progressive left.
The changes you’re describing aren’t free and would have minuscule benefit overall. Instead, they would just increase prices for everyone else without any tangible benefit.
Yes, smartphones are more capable than they were. No, people aren’t going to fill up racks with them in lieu of actual desktop hardware. All of the infrastructure required to ice and maintain an old phone isn’t worth the effort and high failure rates. OSS firmware doesn’t solve those issues.
1. The added cost will simply be passed down to the consumer. Since a perfect alternative doesn't exist and the market isn't free anyways, customers won't switch. And since the number of customers stays the same, profits stay the same, so the producer won't change.
2. The money from the tax won't actually solve the problem. Perfectly usable electronics will still be discarded, landfills will still fill and new devices will still be unnecessarily manufactured. The harm done is the same, only now the government has some extra change.