If VOY "Future's End" & "11:59", and ENT "Carpenter Street" are anything to go by, North America was NOT dominated by Augments in the 1990's.
Doesn't Carpenter Street
take place a few years after the wars would've ended?
True, but "Future's End" is in 1996, the same year the conflicts ended, and the USA looks the same as it did in reality. I find it hard to believe that if the nation had been under Augment control for at least three years, things would be normal by then.