Actor Mark Ruffalo blasted Ellen DeGeneres for wanting to ‘talk about kindness,’ after the television show host advocated for friendships with people who have different beliefs in defense of her relationship with George W. Bush.

The environmental activist took to his Twitter on Wednesday to blast the ‘kindness’ DeGeneres displayed toward the former president – advocating that Bush be ‘brought to justice.’

‘Sorry, until George W. Bush is brought to justice for the crimes of the Iraq War, (including American-lead torture, Iraqi deaths & displacement, and the deep scars—emotional & otherwise—inflicted on our military that served his folly), we can’t even begin to talk about kindness,’ he declared in the tweet that quickly went viral with more than 45,000 likes.