First of all, "Generations" was an NBC soap, not ABC. Second of all, as a prime time series, the tenure of "The Drew Carey Show" has no bearing on the decisions which determine the life or death of a daytime program. No matter how much a viewer loves a show, the show will die if the ratings aren't high enough, and "Generations" ranked far behind every other daytime drama for its entire run.
The concentration on African-American characters was both what made the show unique and a large part of the problem with it. The creator of the show evidently went out of her way to portray the characters as normal, down-to-earth, middle-class Americans. Unfortunately, it is "abnormal" characters which spice up the drama. The main family on "Generations" were the owners of an ice cream parlor. Much of the day-to-day action was mundane, even banal compared to that on other soaps of the period.
Even if "Generations" had clearly excelled over its competition, it would likely have lived a short life; it was on the lowest-rated network (in daytime ratings anyway), it had an iffy time slot, and it was a cold half-hour launch, in a time when virtually all of the shows were an hour. So it was doomed to end up an admirable but regrettably short-lived effort.
