DaCostaBR: The original Xbox generation has grown up to become the much maligned frat boys that constitute the lion's share of Halo's and COD's audience. People like TB are preaching to those who never liked that genre anyway and, as such, their opinion won't reach the people who are likely to buy these games and they won't cjange anything.
Actually, thing change, because people change. As you said, the original Xbox generation are now in college, do you think they'll still be into broshooters when their out of education/working? Do you think the next generation is going to be the same? All numbers indicate that the young generation are more interested in social devices, and don't care much for video games, the average gamer at least here in Australia is 30, and it's about the same or older in the rest of the West.
The reason that the Xbox generation was able to sweep away the old PC generation around the turn of the millennium was precisely because PC gaming was much, much smaller back then. The publishers and Microsoft had a ready-made generation from the PS1/N64 and earlier days ready for the new console. Do you seriously believe that this coming generation of consoles has their own generation of millions upon millions of young people secretly hidden away and ready to propel the Xbox 1 and PS4 to enormous success?
The audience isn't there man, they are too busy with tablets, phones, socializing and don't care about games. They will have to sell the next-gen to the same people they sold the previous-gen to.
What is going to happen when/if the Xbox generation simply don't buy any of those type of games anymore? What happens when they grow out of the shallow linear simplistic shooter genre? Who is going to replace them?
DOOM! The entire shallow action genre is going to crumble.