California voters approved such a law, 1963 Prop 14, but the supreme court struck it down.
But don't lose hope for direct democracy yet! A few years later Prop 13, which is arguably worse on minorities https://harvardcrcl.org/wp-content/uploads/sites/10/2018/11/..., passed by a wide margin and continues to see strong support from voting demographics today.
But don't lose hope for direct democracy yet! A few years later Prop 13, which is arguably worse on minorities https://harvardcrcl.org/wp-content/uploads/sites/10/2018/11/..., passed by a wide margin and continues to see strong support from voting demographics today.