Because the amount of spare effort people have available is correlated to class, and thus adding more hoops to jump through is yet another way to favor the idle

Because the amount of spare effort people have available is correlated to class, and thus adding more hoops to jump through is yet another way to favor the idle rich over the working poor. But I also don't see why the first sentence is inherently bad. Why is it good to police what type of people may vote? Why is it good to police the reason for voting?