What I find ironic about this comic is that it asks “why stop there?” but the truth is that we never stopped. Most politicians are already more like actors anyway, and the movies (especially Pixar) have blurred the line between real and virtual actors. For all we know, Romney is a CGI. And if Obama were replaced by a CGI, he wouldn’t have to worry about being assassinated by some right-wing nutcase.
The only choice seems to be between thinking this is a good idea, and thinking that it has already been done. Mission Accomplished!