I think this company has few different teams that work on the problem from different angles
Some are on the boats in the Pacific some are building interceptors in rivers in countries that are the largest producers of waste that makes it to the ocean. Of course they can’t fix the problem just slow it down. The fix comes from these countries changing how they allow garbage to be collected and stored.
Russia uses nukes in Ukraine to “win” the war. Now they control land that has large swaths that are completely unlivable and non-productive for farming. And the “livable” parts Russia would have to spend huge sums of money to re-build the infrastructure from the blast(s).
Even if the rest of the world let’s them get away with that (which I doubt they would) it doesn’t seem like a very good strategy.