Dice is the founder of a San Diegan Christian activist group called "The Resistance", described as being "known for its hardline stance on morality".[7] In late 2004, Dice published the websiteTheResistanceManifesto.comunder the pseudonym John Conner. The Village Voice wrote that his pen-name was "presumably" taken from the 1984 sci-fi film The Terminator whose fictional protagonist was future Resistance leader John Connor.[8] A year later, Dice self-published his website writings in book form as The Resistance Manifesto under the John Conner name; an updated 2008 version of the book credited Mark Dice as the author.[9]
In 2008, in response to Starbucks' reintroduction of its original logo (featuring a topless siren), Dice led his group and its 3,000 members in boycotting the coffee chain: "The Starbucks logo has a naked woman on it with her legs spread like a prostitute […] It's extremely poor taste, and the company might as well call themselves Slutbucks." Starbucks had more than 6,000 locations in 2008.[7]