> The distinction between “official” and “unofficial” becomes meaningless when a president can use their official powers to do illegal things that benefit themselves in an unofficial capacity.

Maybe, but does it follow that there's no protection for "official acts?" Go read some criminal statutes, and see what it would take for a creative red state prosecutor to pin something on Obama for ordering drone strikes killing American citizens. Or do you think Biden couldn't be charged with something in connection with his border policies?