This is a legal question, Can the British Monarchy be abolished by the People. Pls NO explanations for needing

This is a legal question, Can the British Monarchy be abolished by the People. Pls NO explanations why the Monarchy is needed, it doesn't hurt etc. This is a very simple legal question (or may be a complex one). But anyone who has researched this topic (preferably a lawyer or a republican, please post your findings). I have no vested interest. I'm just writing a paper. One key subject of the paper is "When do people actually have freedom", then came the subject of British Monarchy. Legally do the people even have the power to abolish the British Monarchy. PLEASE I DONT NEED JUSTIFICATIONS WHY THE MONARCHY IS NEEDED, that is out of context.