Harry and Meghan Missing Philip's Memorial 'Unforgivable'—Thomas Markle

Prince Harry and Meghan Markle's absence from a memorial service to Prince Philip was "unforgivable" and a "slap in the face" for Queen Elizabeth II, Thomas Markle has said.

Meghan's father used his new YouTube channel, titled "Remarkable Friendship," to accuse his daughter and son-in-law of letting down the royals by missing a March 29 service in honour of Harry's grandfather.

However, he said the queen was right to let Prince Andrew—who settled a sexual abuse lawsuit out of court in March—walk her to her seat at the Westminster Abbey event.

Thomas Markle said: "Attending and giving respect and God's grace to Prince Philip for a lifetime of service was very important to the Queen, and for them to not show up is like a slap in the face to the Queen and unforgivable.

"The British people won't forgive them for that, and they shouldn't. Otherwise it was a good service and went down very well. And well deserved for that man."

He added: "She [the queen] was right to take Andrew at her side and I think some people got a little shocked by that but I think it was the right thing for her and for Andrew."

Andrew's unexpected starring role on the day led to criticism on several U.K. newspaper front pages, as well as a social media backlash, but Markle saved his condemnation for Harry.

He said: "He [Harry] didn't attend the memorial. Instead he felt it was more important to walk his dogs on the beach. Meghan I guess convinced him not to go or someone convinced him not to go but it was a stupid mistake and he should be ashamed of himself.

"And he should be ashamed to ever go back to England again. But then again I'm prejudiced against him, so that's how I feel. If they didn't have this multi-million dollar public relations team everyone would hate them."

The saga comes against the backdrop of a lawsuit filed by Harry against the U.K. government over the decision to remove his police protection.

In January, a legal representative for the duke said in a statement released to Newsweek: "While his role within the Institution has changed, his profile as a member of the Royal Family has not. Nor has the threat to him and his family.

"The Duke and Duchess of Sussex personally fund a private security team for their family, yet that security cannot replicate the necessary police protection needed whilst in the UK.

"In the absence of such protection, Prince Harry and his family are unable to return to his home."

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Markle Sr. has set up a YouTube channel with a professional photographer, which he has used before to criticize Meghan and Harry.

The duchess and her father have been estranged since the days before her May 2018 royal wedding, when he was caught staging pictures with the paparazzi for money.

Markle Sr. has, however, been a regular critic of his daughter in media interviews since and just months later his comments were causing conflict within the royal family.

In November 2021, a selection of Meghan's past emails and texts were made public through a lawsuit she filed against The Mail on Sunday.

The duchess told her communications secretary Jason Knauf that the royals were "constantly berating" Harry and wanted her to fly out to Mexico to speak to him face-to-face.

Harry, Meghan and Thomas Markle
Meghan Markle and Prince Harry, seen visiting One World Observatory, in New York City, on September 23, 2021, did not attend a memorial to Prince Philip. Thomas Markle said their absence was "unforgivable" on his YouTube channel. Taylor Hill/WireImage