The “political scientist” who was responsible for this particular graph going viral has apparently taken it down and apologized (on Twitter, of course). That’s great! Also he should never be taken seriously by anyone ever again.
I hate screenshot culture so fucking much. If you repost some rando’s unsourced screenshot of a graph because it’s vaguely professional-looking and supports some idea you want to believe, then idk, you might not be a bad person, but you’re definitely making the world a worse place.