For two main reasons
1) Red Fang has members with at least ONE thumb, which means they can in fact play Red Dead Redemption, while Red Dead Redemption has no opposable thumbs to begin with, and cannot in fact play Red Fang and
2) You can most certainly put on some Red Fang while you are playing Red Dead Redemption, but you can not for a -FACT- play Red Dead Redemption in a Red Fang concert (perhaps a form of racism?)
DISCLAIMER: The fact that one is in fact a group of human beings and the other is a piece of software (or hardware if you have a hard copy) has nothing to do with the above results
Breakdown of the Breakdown
When it comes to number 1) the reasoning is obvious. Red Dead Redemption even as a hard copy is just a cd, and has no opposable thumbs. As a matter of scientific fact, it has no limbs or any other body parts since it is a construct of the Technological advances humanity has done.
Number 2) was harder to concede. Many may argue, and rightfully so, that if someone is brave enough they can in fact play Red Dead Redemption in a Red Fang concert, however due to the planning, preparation, boldness and off course dangers/risks the plan's execution might entail, we think it is a feat impossible for the common folk and as such decided to go with the above statement.
