2001 is considered gen Z. Before them are millenials, the oldest of which were born around 1980. If OP was in their late 40s, they would Gen X. So clearly they

2001 is considered gen Z. Before them are millenials, the oldest of which were born around 1980. If OP was in their late 40s, they would Gen X. So clearly they were referring to millenials, and not Gen X.