What were some long-term effects of the courts decision in the slaughterhouse case

The Slaughterhouse Cases, resolved by the U.S. Supreme Court in 1873, ruled that a citizen's "privileges and immunities," as protected by the Constitution's Fourteenth Amendment against the states, were limited to those spelled out in the Constitution and did not include many rights given by the individual states.

Probably japan. they got a really high life expectancy.