Republic is an organisation that campaigns for Queen Elizabeth II to be replaced by a democratic, elected head of state and for the monarchy to be abolished. Graham Smith told Express.co.uk that the Duke of Cornwall has commented on every area of Government over the last 40 years and this could result in a conflict with the UK Government.
The Republic CEO said: “If you ask Prince Charles’s spokespeople, they always say it will be different when he is King and he won’t be outspoken when he is King.
“But he has made it clear that he wants to be a different type of monarch, you also cannot suddenly unsay what he has said.”
Mr Smith added: “It does not work like that, his public statements have been on every area of Government, education, health, planning, environment.
“You name it he has been talking about it in one way or another over the last 40 years.
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“A lot of it is eccentric, a lot of it is just plain wrong, a lot of it is controversial and certainly at odds with what governments and voters would want.”
The Republic CEO also argued that the Prince of Wales replacing the Queen as Monarch would “hasten the end” of the Royal Family.
Mr Smith added that Prince Charles becoming King could result in a very serious crisis.
He said: “We are and I think a lot of people are concerned about Charles becoming King.
“I think he is going to hasten the end of the monarchy.
“The monarchy tends to survive because of the Queen and Prince Charles is not as well-liked or supported.
“He is also much easier to challenge and criticise, the problem with him is that he cannot help himself when it comes to interfering with politics.”
He continued: “If we have just one serious issue where the Government after he becomes King, changes its policy to match what Charles has said on the public record previously then we have to start asking questions as to whether they did that because they thought it was a good idea or because Prince Charles was lobbying them privately, that would cause a very serious crisis.”
Despite these claims, leading royal commentator Richard Fitzwilliams has argued there is still a significant majority in favour of the monarchy.
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He told Express.co.uk: “While there have always been some, the percentage of the population that wants to see the end of the monarchy has always been pretty small.
“It still remains small, they are a very small minority of people.”
Mr Fitzwilliams also praised the influence of the Monarch during the coronavirus pandemic.
He said: “There is no question she is in a pivotal situation as a figure symbolic of national unity at a time where we face the greatest health crisis for a century.”