• Stands above the law. ❌
• Makes his own laws. ❌
• Nullifies laws that don't suit him. ❌
• Takes "gifts" for favors (political and personal). ❔
• Pardons whomever he pleases. ❌
• Has his friends and family ingrained in government. ❔
• Holds a court of sycophants. ❔
• Plans to stay in power indefinitely. ✔️
• Meddles with election results. ❌
• Tells the people his appointment is an act of God.❔
• Will choose/appoint his successor upon his death. ❌
• Denies words of the leader of the Catholic church, as if he stands above them. ❌
• Renames landmarks and architecture after himself. ❌
• Refuses to be (de-?)elected out of office. ✔️
• Has his own armed forces outside of a standing army. ❌

Out of that list I'd say 2 apply (but they're really the same thing), 4 are maybes, and 9 don't apply to King Charles. He has very little real power. Influence, maybe, but the royals have a policy of never speaking on political topics.

You haven't got a king in the US. You've got a dictator.