He added: “Across the West, our values of tolerance and freedom of expression increasingly risk being undermined by a small but vocal minority.
“For them, these are not absolute, but relative, concepts, ready to be bent to silence dissent from their world view. We will not stand by and allow that to happen.”
GB News has faced accusations it will be broadcasting US-style partisan news shows in the UK with campaign group Stop Funding Hate challenging brands not to place ads on the channel before it had even launched.
While GB News has repeatedly insisted it is committed to producing impartial journalism, this week saw a number of brands suspend their advertising on the network.
Swedish furniture giant Ikea said it had “not knowingly” advertised on GB News and said it was “in the process of investigating how this may have occurred to ensure it won’t happen again in future”, pulling their ads in the meantime – something GB News chair Andrew Neil hit back at on Twitter.
In its statement, Kopparberg also said it was unaware its adverts were running on the channel and said they had been suspended “pending further review of its content”.
Energy company Octopus said it would only advertise with GB News if it proved to be “genuinely balanced”, while The Open University also paused its advertising.