It doesn't contract the 13/50 stat at all. And also says that "white people commit way more crimes in the US".

Specifically: 4,209 (48.7%) "murders and nonnegligent manslaughter" ("murders") are categorized under race=Black. Incidentally, still less than race=White (4,261 or 49.3%).

Indeed, 12.6% of respondents in the 2010 census self-identified as "Black or African American".

That's your 13/50 meme.

However, murders are <0.085% of all crimes tallied in the FBI report, and are far outweighed by crimes like larceny (1M instances), drug abuse violations (1.27M), DUIs (1M), and "Other" (2.9M), where race=White are all by far the majority.

Thus, 69.4% of crimes are committed by race=White, so "white people commit way more crimes in the US" is also true.

Also worth noting that the FBI report doesn't break out Hispanic and Latino Americans, which are 16.3% of the U.S. population in the U.S. Census.

And if you want to be really pedantic, technically the stat here is "arrests", not "committed a crime" or "found guilty".