You picked one example of mine and ignored the others :) DDR is competitive and multiplayer as well as League of Legends, and in both of those games cheating is ambiguous. Even in counterstrike some people have water-cooled 5,000 rigs, some people consider that cheating in a casual setting.
You say its wrong in every circumstance, does that include disabled gamers? Or parents wanting to play with their kids? What about people writing bots to learn how to program AI? Or programs that compensate for something like bad hardware or high ping, not scripts that autoaim but help reduce issues.
I know I'm being devils advocate a little bit here, but I disagree with the concept that cheaters are bad people or that it should require government involvement. People play games however they want, it's up to studios to drive that experience.