> I’m questioning r. Mirvis. He’s not someone who I’m obligated to listen to or be mevatel daas to. And he’d be the first person to tell you that.
This phrase should be reversed “he is not obligated to listen to you”. He is a Rabbi in an official position. Were you to travel to UK, you would be bound by his positions in public. And just because he is “not your Rabbi”, does not mean that you can disrespect him. Hope you’ll review these halochos urgently with your posek in case your students will ask about the coronation this week. Let us know what he says!
The above would be true for any issue, but specifically here – do we expect R Mirvis to post a written teshuva that explains why we need to placate the King? Do you think King will relate to us better after he reads this teshuva? If MI-5 & 6 do not tell him, he can easily google himself for King and Chief Rabbi. I think this would be clear, as you say, for a Roman emperor. Things may not be as dramatic now, but world politics is still there, just in a different form.