There is a middle between "Game destroyed G-Unit" and "Game ain't had sh*t to do with G-Unit's decline" people.
Game definitely played a big part in 50's and the Unit's fall. If you don't see that, you are delirious. Do you really think RICK ROSS could "win" a beef with 50 Cent if Game hadn't already shown that you could go at the top dog and still have a successful career afterwards?
On the other hand, Game didn't destroy G-Unit single-handedly. He hurt them for sure (just look at how many albums he has put out on a major compared to Yayo, Banks, Buck and even 50) but 50 will most likely outsell Game's 2 latest albums.
As I said, there is a middle ground here.
Not to mention 5-0 aka 50 is a Neocon and him and his crew ( G-Unit)brought us absolutely the worst direction for rap and hip-hop since the era of the late 80's early 90's (Yes the Lame a.ss MC Hammer/Vanilla Ice/Young Black Teenagers/Kriss Kross era).