Why can't concentrated hydrochloric acid oxidize iodine ions? Why can potassium permanganate oxidize iodine ion and chloride ion at the same time?

Good afternoon. Of course, concentrated hydrochloric acid can't oxidize I-, because hydroiodic acid is stronger than it in the halogen bronze family (the order of oxidation ability: HF→HCl→HBr→HI, HF, I almost forgot whether it is oxidized or not, which is extremely weak), and hydroiodic acid has the strongest oxidation ability. As for the ranking of kings, potassium permanganate can oxidize I- and Cl- because it is peroxy acid ("potassium permanganate" is a proper term, after all, who has heard of what "potassium permanganate" is? We usually call it "Gao" to cover up the "country", so we always feel that it is just a catch-up of ordinary inorganic salts, just like the fallacy that petroleum ether is not ether. ) Mn is the highest valence of +7, which is easy to be reduced. The ranking of oxidation ladder is a pure king who can rub I- and Cl- on the ground with an electron at will, but it can only be achieved in an acidic environment, and acidic H+ will