If I had carte blanche to reshape the constitution then I think I would abolish the monarchy, or at the very least make them wholly extraneous to the political process.
I think our political system is ineffectual, undemocratic and anachronistic and it would be intellectually dishonest of me to exclude the presence of a hereditary system within that equation, as it plainly is.
The stability that a monarchy has provided must also have contributed to the oscillation within our political system and institutions which has undoubtedly (imo) precipitated our decline as a nation. One only has to look at the pitiful quality of politicians across the political spectrum today compared to a generation ago to appreciate how stark that decline is.
The whole thing needs ripping up and starting again, and the position of a hereditary head of state has to be part of that process, as it has to be part of the problem. It’s difficult to argue otherwise.