Plastic recycling, definitely. Aluminum/aluminum recycling is very effective. Approximately 75% of aluminum that has ever been mined and processed is still in use, and it can be re-used and recycled a functionally infinite number of times. But you’re totally right about greenwashing in plastics. Even the easiest plastics to “recycle” (like PET or PETE) can only be reprocessed once or twice before the polymers break down too much for re-use.