In fairness, “If the president decides that his rival is a corrupt person, and he orders the military or orders someone to assassinate him, is that within his official acts for which he can get immunity?” applies to drone strikes of foreign nationals too. Bush, Obama, Trump, and Biden all fall under that category. While we should be scrutinizing all of our leaders, I feel the argument will be made that it would make all of our presidents open to “frivolous”(their word, not mine) lawsuits for their actions in office.
And it damn well should. But instead it will be “well this is how a US president functions 🤷♂️”