Little Lord Fault LeRoy!
The United States of America was intentionally and specifically designed to be a "CONSTITUTIONAL REPUBLIC"!
There can be no such concept as a 'republican democracy"! Your statement is Oxymoronic, as are most statements affiliated with liberal progressive thinking!!
The differences between a "REPUBLIC" and a "democracy" are irreconcilable!
The term “DEMOCRAT” is synonymous with Liberalism, Progressivism, Collectivism, Egalitarianism, Unionism, Socialism, Marxism, and Communism, and although each of these sociopolitical ideologies has its own peculiarities, they all harbor the same basic tenets and regardless by what appellation they are disguised, all are the Antithesis of our Constitutional Republic!