The TV presenter - who left Loose Women this year - also said she didn’t think many of her fellow panellists were fans of the presenter.
Schofield, 61, left This Morning last month after admitting to an affair with a younger colleague. The ITV show has also been rocked by claims of a toxic workplace, which Schofield himself has denied.
Addressing the controversy on GB News, McGiffin said: “I think genuinely that This Morning, this show can't go on.
“I think it's way too tainted.”
'Everybody knew there something was wrong and when people around ITV say we didn't know anything about it, you did, everybody did - everybody knew.'
Carol McGiffin discusses ITV's alleged cover-up of the Phillip Schofield affair scandal. pic.twitter.com/8jTetnZrgH
— GB News (@GBNEWS) June 2, 2023
McGiffin, who was on Loose Women on and off from 2003 until this year, said that she thought Schofield was trying to “take the fall” for bosses at ITV.
And she said that she didn’t think he was “liked” by any of the Loose Women.
“I never heard anybody there say that they actually like him and no one ever really had a good word for him,” she said.
McGiffin is not the only star to suggest that This Morning should end after what has happened.
Earlier this week, former Atomic Kitten singer Kerry Katona said that she thinks it “needs to go”.
"It all needs revamping – the gods above, who are the little puppet masters, they need their strings cutting... they need to get new people in,” she said on GB News.
Yahoo has contacted ITV for comment.
Watch: Phillip Schofield is ‘broken and ashamed’ after revealing affair