Your knowledge is poor, at best.
Biden is your ruler, whether you voted for him or not.
Here's a school lesson. There are two types of Monarchy, Absolute and Constitutional. An Absolute Monarchy makes the decisions, they rule. You find this in Brunei, Oman, Qatar, Saudi Arabia, Eswatini, United Arab Emirates, and Vatican City. Other countries have Constitutional Monarchy's. So they're just a figure head of state and simply rubber stamp off what the government do, just like in the UK.
On a psychology side of things, there's an imaginary invisible hierocracy. So this is what insults are based on. So if someone feels they need to lower someone in this imaginary invisible hierocracy, the insult will be based on such things as hair colour, bodily features, sex, race, heritage etc.. So you feel you need to rise above Prince Charles, hence the large ears. But every post from you guys are predictable and follow basic psychology.