Four Points about the Revolutionary Character of Republicanism

There are four things to understand about Republicanism:

1. The Socialist and Marxist critique of capitalism and capital greed is not anti-republican. Critiques of capitalism and greed ought to be openly welcomed and debated. The attitude against this, masked under the old propaganda of “Red Scare” (equating everything on one political side to Communism) in this country is an obvious front to prevent people from questioning the policies and greed of wealthy billionaires — the encroachment of oligarchic forces.
2. Republicanism, especially American republicanism is not an anti-liberal tradition. Anti-liberalism is historically characteristic of Fascism, Monarchism and traditional Conservatism. The republican thinker is a revolutionary and should remain so in spirit and body; and does not belong to the reactionary, or counter-revolutionary tradition. One should never take comfort in intellectual and spiritual stagnation as an individual of republican mind at any age.
3. Marx is technically considered part of the republican political heritage. We are free to all study the exploitative machinations of our economic system without fear, and no American should be considered an Anti-American for doing so.
4. One cannot be rabidly anti-democratic and zealously anti-liberal yet also claim to be republican.

What are some more key points or detail within these points you can add. Lets reflect on that, and make our comment.