Close the comment section
Close your comment section since you seem to be doing nothing about the violent racist comments.
So, do your job, or simply close the comment section. It seems your readers are too racist/homophobic/misogynist to handle it.
But the Yahoo comments section has been an eye-opener to me on just how many racists and bigots there are, willing to openly express very bad opinions. As much as it feeds the beast, it also gives people an opportunity to see it