Slipknot vocalist Corey Taylor spoke out against deniers of the Holocaust and slavery in a heated missive delivered Monday (July 8) on social media, with the musician taking historical negationists to task.

As defined by the SPLC, Holocaust deniers "either deny that such a genocide took place or minimize its extent. These groups (and individuals) often cloak themselves in the sober language of serious scholarship, call themselves 'historical revisionists' instead of deniers, and accuse their critics of trying to squelch open-minded inquiries into historical truth." See Taylor's response to such deniers down toward the bottom of this post.

"I'm gonna say this for the fuckers in the back," Taylor wrote before noting his point in all caps. "JUST BECAUSE YOU DON'T BELIEVE SOMETHING IS REAL, THAT DOESN'T MEAN IT ISN'T REAL. Denying things like the Holocaust. slavery, etc is a travesty to the memory of the survivors and disrespectful to the people who fought for them."

The screed capped a period the musician spent on Twitter refuting supremacist content and speaking out against racist ideologies. That same day, the singer retweeted a NowThis news video showing a "far-right extremist’s attempt to light a synagogue on fire [that] blew up in his face, literally." Taylor's response to the clip was succinct.

"This- right here- is why prejudice, racism and ignorant hate will always just be different ways of saying and meaning FUCKING DUMBASS," he said.

Taylor's tweet about Holocaust denial was seemingly prompted by a USA Today article in which a Florida principal refused to call the mass genocide a "factual, historical event." As noted by Spin, the Slipknot singer shared a link to that article on his Twitter feed.

The singer's emphatic and important tweets come a month before Slipknot release their sixth album, We Are Not Your Kind, out Aug. 9. Catch the band on the Knotfest Roadshow this summer at the dates below.

Slipknot, Volbeat, Behemoth + Gojira Summer 2019 U.S. Tour Dates

Fri Jul 26 - Mountain View, CA - Shoreline Amphitheatre

Sat Jul 27 - San Bernardino, CA - San Manuel Amphitheater

Thu Aug 1 - Salt Lake City, UT - USANA Amphitheatre

Sat Aug 3 - Albuquerque, NM - Isleta Amphitheater

Sun Aug 4 - Phoenix, AZ - Ak-Chin Pavilion

Tue Aug 6 - Denver, CO - Pepsi Center

Thu Aug 8 - Lincoln, NE - Pinnacle Bank Arena

Sat Aug 10 - Des Moines, IA - Iowa State Fairgrounds*

Sun Aug 11 - Tinley Park, IL - Hollywood Casino Amphitheatre

Mon Aug 12 - Clarkston, MI - DTE Energy Music Theatre

Wed Aug 14 - Virginia Beach, VA - Veterans United Home Loans Amphitheater

Fri Aug 16 - Noblesville, IN - Ruoff Home Mortgage Music Center

Sat Aug 17 - Bonner Springs, KS - Providence Medical Center Amphitheater

Sun Aug 18 - Maryland Heights, MO - Hollywood Casino Amphitheatre

Tue Aug 20 - Toronto, ON - Budweiser Stage

Wed Aug 21 - Saratoga Springs, NY - Saratoga Performing Arts Center

Fri Aug 23 - Burgettstown, PA - KeyBank Pavilion

Sat Aug 24 - Scranton, PA - The Pavilion at Montage Mountain

Sun Aug 25 - Darien Center, NY - Darien Lake Amphitheater

Tue Aug 27 - Mansfield, MA – The Xfinity Center

Wed Aug 28 - Wantagh, NY - Northwell Health at Jones Beach Theater

Fri Aug 30 - Holmdel, NJ - PNC Bank Arts Center

Sat Aug 31 - Camden, NJ - BB&T Pavilion

Sun Sep 1 - Bristow, VA - Jiffy Lube Live

Tue Sep 3 - Alpharetta, GA - Ameris Bank Amphitheatre

Wed Sep 4 - Tampa, FL - MIDFLORIDA Credit Union Amphitheatre

Fri Sep 6 - Austin, TX - Austin360 Amphitheater at Circuit of The Americas

Sat Sep 7 - Dallas, TX - Dos Equis Pavilion

Sun Sep 8 - The Woodlands, TX - The Cynthia Woods Mitchell Pavilion presented by Huntsman

*Iowa State Fair – Slipknot & Gojira only