The billionaire media mogul isn't feeling very cheery on this St. Patrick's Day, what with so many parades losing participation over LGBT issues.
New York City Mayor Bill de Blasio is skipping his city's parade due to a dispute over whether some participants could carry gay pride signs.
Boston Mayor Martin Walsh is also sitting out of his city's parade after failed negotiations to allow a gay veterans group.
The private sector followed the lead of the politicians. On Friday, the Boston Beer Company, which makes Sam Adams, pulled out of the Beantown celebration.
But the last straw for Murdoch came Sunday, when Guinness yanked its sponsorship of the New York City parade after the Stonewall Inn — an institution within the gay rights movement — threatened to stop selling the beer.
"Where will this end?" despaired Murdoch on Twitter. "Guinness pulls out of religious parade bullied by gay orgs who try to take it over."
He then called on "all Irish" to "boycott the stuff."