The SEC is a 3 tiered system. At the bottom you have your Vanderbilt, Kentucky and a few others. Then on the second level is the better teams Ga, Auburn, Florida etc..I don't care who beats Bama as long as they lose to they take the fun out of sec football
And then at the top all by themselves is Alabama. Occasionally someone make sneak in a win against them but those are few and far between. That premier and exalted seat insures better recruiting and limitless depth at almost every position.
Short of the government declaring Alabama football a monopoly and breaking up the team this dominance will continue into the foreseeable future.
And also....