Maybe you want to add some caveats a little closer to this point in the text? Because this implies a profoundly anti-democratic impulse.

In particular, referencing demographic predictions isn't really enough to allay the concern.

(Also, if it's merely a matter of demographics, then still nobody will need to listen to blacks, because the increase is primarily in the (non-black) Hispanic population. So I think you're hoping for something a little more transformative than merely a demographic change. Hispanic is the new white? Why not--it's happened plenty of times before (Irish, Italians, etc.).)