[riffic]

> a constitutional change

Just in case anyone didn't know, the UK does not have a singular written constitution like you may find elsewhere.

https://en.wikipedia.org/wiki/Constitution_of_the_United_Kin...

[worik]

Which makes constitutional change much easier.

IANAL but I think an act of parliament, ironically signed by the monarch, would suffice to abolish the monarchy in England.