I know you're not being serious, but "animation" and "live action with CGI" are different filmmaking styles. They live on opposite sides of the uncanny valley.

I know you're not being serious, but "animation" and "live action with CGI" are different filmmaking styles. They live on opposite sides of the uncanny valley. One is meant to appear completely realistic. The other is intended to be stylized, and would be ruined by being realistic. It's one reason why live-action remakes of animated shows so rarely work. Humans can't act, move, or look like cartoons. The result is usually dull, not because anything looks wrong but because it looked so much better fully animated. When you watch CGI superheroes, they're supposed to trick you into thinking you're watching a real thing. The filmmakers would have done it live if they could; the option simply wasn't available.