I am willing to pay an energy premium today in order to avoid that human rights premium in the future. You may not be so willing, but I would urge you to consider that position.
The maximum effect of your policy will be to delay the moment when recycling becomes economic advantageous, and waste money/energy until then.
I would disagree. There is a benefit to keeping these materials out of a landfill.
Saying we should just throw everything into a landfill because that uses the least energy is not considering the other benefits of diverting waste from the landfill.
Also, certain plastics are very easy to recycle, so it's already profitable, I suppose.
Otherwise, you can see landfills as future mining sites, when technology improves.