Braxton gets sent to the late sixties; his presence immediately impacts upon Henry starling. Voyager -- existing in a reality where the Eugenics Wars occurred -- is pulled back too but ends up in the NEW non-eugenics wars 1990's (this reality having been created by Braxton's earlier presence). Starling sets in motion, the technology age we're currently experiencing. Something obviously happens/happened that changes things slightly and he is removed from the equation (replaced by Steve Jobs, Bill Gates etc). Hence the Eugenics Wars did not happen. The 90's that we know (a similar version at least) replaced that reality. Also, what the hell kind of temporal policy is... they caused a time problem so... let's just kill them. Was Braxton already time crazy at this point? I find it hard to believe that the temporal integrity commission would just go about killing people to fix time. Sidenote: Why is it when humans go undercover on a planet, they get highly advanced (yet harmless) cosmetic surgery but when Vulcans go undercover on Earth... they get a hat? Feel free to bring up anything else related to Future's End.