alt Hacker NewsI like The Big Lebowski, it has some fun lines, but John Goodman's Walter Sobchak doesn't have a monopoly on the English phrase "Say what you will about X".
And indeed apparently the line was in fact "say what you want about the tenets of national socialism", not "say what you will about the tenets of national socialism" (https://www.youtube.com/watch?v=b_29yvYpf4w).
The second half of the line was also relevant, since the claim of Jews controlling the world was specifically a Nazi one.