I believe there was a much clearer more charitable reading of the above than assuming the person posting doesn't understand the difference between a political party and a Supreme Court.
There was a action. That action was a effective repeal of the voting rights act. The Supreme Court performed that action.
A political party responded to that act by rolling back voting rights.
While this is a possible interpretation the paragraph puts a lot of weight on the supreme court decision and doesn't seem to mention any legislative or executive decisions that were enabled by the court.
