> As a UK resident, I would prefer if the UK were a republic on general principle, but I fail to see the monarchy causing any real large-scale harm to society (individuals like Andrew notwithstanding).

I'm not a UK resident [obviously] but I thought the parliament was explicitly superior to the monarchy? Isn't the monarchy essentially cultural theater at this point, for centuries now? The moment the king causes a crisis by stepping out of his very narrow lane, one Act of Parliament could make the monarchy a memory, right? I suppose he could refuse ascent then, and that would be a legitimate constitutional crisis.