Throwing solid waste in a hole is not management of that waste. What we need is recycling technology that works and is widely used, which requires money, which means we need to target the advanced economies first.
I strongly disagree. Properly using and managing landfills worldwide is one of several necessary first steps towards a better ocean.
We are multiple large breakthroughs away from recycling technology becoming a viable path towards meaningful reduction of ocean-bound waste. Meanwhile, poor coastal nations continue to use the ocean as a landfill.
Assuming you’re able to dodge corruption in local officials, a dollar towards waste management development in Africa will go much further (in reduced kg/year of trash going into the ocean) than a dollar towards recycling technology R&D.