But the most concrete accusation against him is also one that he inadvertently confirmed on Twitter while trying to defend himself. The accusation revolves around a 2019 incident, where Corden reportedly showed up at a Writers Guild of America (WGA) meeting with his executive producer (but none of his writers) to advocate for a "new writer's program" that would allow his show to hire writers who had interned for a year on a show at a wage lower than the mandated minimum set by the Guild.

The accusation came from a late night writer who had attended the meeting, tweeting from the handle @jackallisonLOL. He wrote: "I’d like to state once again for the record that I went to a WGA meeting for only late night writers, and James Corden showed up without any of his staffers to advocate for a lower pay grade for late night writers."

Replying to the accusation, Corden tried to frame the incident in a more positive light, tweeting that he "would never ever want to pay a writer less than they deserve. Never. I love every writer on my show and all I ever wanted from that meeting was to explore whether talented people could get a better opportunity.”

However, @jackallisonLOL immediately scuttled Corden's 'out of the kindness of his heart' argument by saying: "James, you showed up to a guild meeting, as an employer, flanked by your executive producer, to advocate for the show's interest to pay writers less. If you want to give talented young writers a shot, you can pay them the Guild minimum that was negotiated in the MBA". MBA in his tweet referred to the 'Minimum Basic Agreement', a collective bargaining agreement that covers the benefits, rights, and protections for most of the work done by WGA members. Corden was not able to answer to this tweet, in essence confirming that he was trying to take advantage of new writers who were lowest on the totem pole and could be exploited.

The memo specifically states that in showrunner and/or writer-producer roles, “you may, along with other non-writing services, be required to perform services commonly referred to as ‘a. thorough h.’ services as a producer,” such as cutting for time, small changes to dialogue or narration made before or during production and “changes in technical or stage directions.” These are duties that, according to the WGA’s contract, non-writers can perform on covered projects.

However, the WGA strike rules explicitly prohibit union members from performing these activities during the 2023 work stoppage. “The Rules prohibit hyphenates (members who are employed in dual capacities) from performing any writing services, including the ‘(a) through (h)’ functions,” the rules state, which puts showrunners and writer-producers in a difficult position, caught between the dictates of their employers and their own union.