SCOTUS Upholds AZ Voting Law

Why are liberals so mad about the SCOTUS ruling on Arizona's voting law?

Liberals are steaming mad at last week’s 6-3 Supreme Court ruling upholding some voter Arizona integrity laws. Justice Samuel Alito, writing for the majority, noted that “Arizona law generally makes it very easy to vote,” especially considering that all Arizona “voters may vote by mail or in person for nearly a month before election day.” Why are liberals hysterical about this ruling, given that in Arizona you have nearly a month to vote? What does that say about how serious someone takes voting if they can’t do it over the course of an entire month?