How exactly was 1992 a realignment?
1992 established the Pacific Coastal states, the Middle Atlantic States (NY, NJ, PA, DE, MD), New England, IL, MI, and WI as a solid Democratic base.
1992 also transformed FL into a swing state.
Prior to 1992, the Democrat's base had been gutted to little more than MA, MN, and DC. Even MA went Republican for Reagan twice. The Democrats had no base of states to speak of from 1972-1988; the possibility of a 49 state blowout was always a possibility. 1992 ended that.