The Supreme Court is being willfully and deliberately obtuse. The laws were no passed in a vacuum. They were in response to actual reduction in voting power caused to minorities which also in effect increased the voting power of whites.
Because the republican base likes it. They like what is happening.
If you don't understand that the average conservative likes the authoritarian daddy figure punishing liberals and believes in white replacement theory, then you don't understand why things are so bad.
New anime plot, get to work