If you are into that, good luck with that and hope that there will never be a retarted king. Because it all depends on whether the king is nice and capable, or not.

Is that the stability and rule of law I should look forward? And they are all not so long lived either btw.

Plots, intrigues and coup d'etat of people who think they would make a better king is still a thing.

And .. I do make the claim that a real direct democracy does not tend to centralisation of power, as there are check and balances, but politicians left alone surely will aim for that as it make governing easier.