The decision is a devastating blow for African Americans in Wisconsin, with the Supreme Court deliberately interpreting a confusing array of legal doctrines in favour of conservative politics. It is further evidence that congressional maps giving more power to black voters are less popular with SCOTUS than redistricting that dilutes the influence of minorities.
SCOTUS ruled according to redistricting law. Gov. Tony Evers drew up new districts that elevated proportionality above all other factors and were gerrymandered based on race. By overturning the districts, the Supreme Court has limited the ability of the Dems to utilize the VRA for political gain.
Both Democrats and Republicans gerrymander massively, making American democracy far from fair. Election laws should change.