When you look at "mismanaged plastic" (IOW, not recycled, not sequestered, just dumped somewhere) that winds up in the ocean, there are several Asian countries that are out of control with just dumping all their plastic there. Their wanton disregard dwarfs what other countries do. It can make what other countries do look trivial **by comparison**.
But in absolute terms, hundreds of thousands of metric tons of 'mismanaged' plastic is getting into the oceans via the U.S. per year. That's not good. Pointing out that there are countries doing twenty to fifty times worse doesn't mean we shouldn't be doing better.
So, the comparison is purposely meant to trivialize a still-important issue (thanks, big petrol and knee-jerk wingnuts!).
Further trivializing the issue is pointing out how much of the U.S.'s plastic is straws. Such a tiny, tiny fraction! But the problem with straws is the outsized effect they have on aquatic animals. Also, a tiny fraction of hundreds of thousands of metric tons is still... a lot.
Getting back to the country comparisons... do you know why the U.S. dumps *relatively* little plastic into the ocean *compared to* those Asian countries? It's precisely because of efforts to *manage* our plastic garbage through reduction in use, re-use in recycling, and disposing in landfills rather than the ocean. It's because of efforts like McDonald's using recycled paper and paper board and all the other stuff like switching to papers straws that we don't have as much plastic garbage to dump in the ocean as the Philippines. Or do you think that somehow the Philippines are producing ten times the amount of garbage overall than the U.S.? Nobody beats our consumption!!
It's not our low consumption that makes us relatively light polluters of the ocean, it's our efforts to manage plastic waste effectively. If we weren't doing all this environmental 'stuff' like switching to paper, we'd be right up there with China.
And that's why the comparison chart doesn't prove that switching to paper straws is an idiotic fool's quest, but it proves that all our efforts of conservation are working.