The UK becoming a republic would not automatically mean a divisive popularly elected politician being head of state. They could continue the current parliamentary system while having a neutral figurehead as President (many countries do this: Ireland and India for example).
yeah but what would be the point of doing that? No politician is going to try and bring about a vote to change from a monarch to a ceremonial figurehead. Indeed, given they swear an oath to the monarch, they're probably not even able to bring about that vote. There's no call for it from the electorate, so it wouldn't be a vote-winner and would be a waste of time.
> Indeed, given they swear an oath to the monarch, they're probably not even able to bring about that vote.
The oath itself wouldn't stop the British Parliament passing an Act of Parliament to abolish the Crown and replace it with some other system. In theory, the monarch could refuse to give their assent to the proposed law but given that would cause a constitutional crisis, in reality the chances are the monarch would assent and the system could be changed.
It seems it would take a republican government in power _or_ huge public demand that the monarchy to be abolished for that to happen which seems unlikely any time soon assuming King Charles III and his successors don't err massively.
