sorry i actually read the article, and didn't just go by the picture at the top

>Newsweek's claim is literally accurate. But it's worth noting the imprecision of this data, and the percentage of mass shootings by white men is lower than their share of the male population, according to Mother Jones. 

This is literally what i explained, again you need to  read what i actually say rather then looking at the first sentence and replying

>Looking only at the male population, some have argued that statistical claims based on Mother Jones data on the racial makeup of mass shooters leaves out important context. Critics argue that when you consider that non-Hispanic white men make up about 63 percent of the male population, white men appear proportionally less likely to commit a mass shooting, according to the Mother Jones statistics showing white men account for 54 percent of mass shootings. (Duwe’s finding that non-Hispanic white men make up 63 percent of mass shooters is roughly in line with the white portion of the male population. White men make up roughly 31 percent of the overall U.S. population.)

https://www.youtube.com/watch?v=e4thCQUZmzE

https://www.youtube.com/watch?v=yATFCh7Fi3w

https://www.nytimes.com/2018/02/17/us/mass-murderers.html