That blindness was 2,000 years ago when authentic Jews were still a thing. JESUS gave them final Judgment:
Luke 19:43-44
For the days shall come upon thee, that thine enemies shall cast a trench about thee, and compass thee round, and keep thee in on every side,
44 And shall lay thee even with the ground, and thy children within thee; and they shall not leave in thee one stone upon another; because thou knewest not the time of thy visitation.