Skincare brand Proactiv has pulled ads from MSNBC after a former contributor to the network, Kurt Eichenwald, tweeted a series of attacks against Kyle Kashuv, a pro-gun survivor of the Parkland school shooting.

Proactiv announced it was parting ways with MSNBC on Twitter, after concerned users contacted the brand expressing concern at their association with the far-left network, which has yet to disavow its former contributor’s comments.

Eichwnwald, a far-left journalist who was an MSNBC contributor until February of this year, repeatedly attacked Kashuv on social media. As Breitbart’s Ian Mason reported, Eichenwald said Kashuv was incapable of debate beyond “slinging insults and conspiracy theory,” that he “traffick[ed] in fantasies,” and that he had “no respect” for the 16-year old.

At the same time, Eichenwald attacked conservatives for “insult[ing] survivors of a mass slaughter.”

Eichenwald later claimed that he had confused Kashuv with a different teenage conservative, CJ Pearson.

Eichenwald is also a contributing editor for Vanity Fair, which has yet to disavow his comments. Brands that have advertised with them in the past mont include Chevrolet, Johnnie Walker, Netflix, Smart Water, Nikon, Geico, Maybelline, Skechers, Saks Fifth Avenue, Tiffany & Co., Lancome, Michael Kors, Calvin Klein, Coach, L’oreal, Nordstrom, Burberry, Ralph Lauren, Bloomingdale’s, The Venetian, Vera Wang, Oscar de la Renta, Louis Vuitton, Fendi, Barney’s, Chloe, Givenchy, MaxMara, Prada, Dior, Gucci, Emporio Armani, Celine, Miu Miu, Saint Laurent, Bulgari, Cartier, Stuart Weitzman, Amazon Prime Pantry, Amazon Alexa, Peapod, Charles Schwab, Nespresso, Shopbop, Showtime, Macy’s, Campbells Soup, Clinique, DeVry University, and Jimmy Choo.

Eichenwald did apologize to Kashuv after concerned Twitter users began contacting MSNBC advertisers. However, Fox News host Laura Ingraham did the same after anti-gun Parkland survivor David Hogg encouraged his followers to target her advertisers, and the apology did her no good. If anything, the pressure on her advertisers intensified.

By instigating an advertiser boycott against Ingraham, Hogg may have opened a Pandora’s box. Smart brands recognize that an angry consumer is an angry consumer, regardless of whether they are leftist or conservative. Advertisers at leftist media outlets are now starting to feel the heat – and Proactiv has decided it wants none of it.

Allum Bokhari is the senior technology correspondent at Breitbart News. You can follow him on Twitter, Gab.ai and add him on Facebook. Email tips and suggestions to allumbokhari@protonmail.com.