Before that was slavery.

Before Jim Crow was Reconstruction, which was the real Progressive Era for African Americans. The Freedman’s Bureau, elections overseen by the Union Army where black citizens were guaranteed a vote, mass migration out of southern plantations and into the industrialized north, and real (abet fleeting) economic progress for the millions of newly liberated peoples.

War on Drug and War on Terror happened at the-end-of/after the New Deal Progressive Era

The Federal War on Drugs began with the Smoking Opium Exclusion Act of 1909, squarely in the thick of the Roosevelt/Wilsonian Prohibitionist period. You could argue that prohibition wars were going on decades earlier, at the state level. Similarly, the War on Terror was an outgrowth of the War on Crime, which has its roots back to the post-Reconstruction South and the prison exclusion of the 13th Amendment.

Progressiveism and Regressiveism is always in a tug-of-war

The liberal/conservative tug-of-war over popular support for government is a tug-of-war. But the underlying policies have a strong through-line going back over a century. Policing, surveillance, and the administrative state bloat with each new administration, following different rhetorical lines but always moving towards the same effective end.

Monarchies have fallen, eventually Oligarchies will fall.

Monarchies rose and fell for thousands of years prior. They did not end, they only changed their form. Regional and sectoral dictatorships are alive and well in the modern era, from explicit Kingdoms in the Middle East to vertically integrated monopolies governed by tyrannical CEOs in the West.

The only exceptions are where popular movements have successfully revolutionized the government, democratized capital, and hedged out foreign financial parasites.

The United States is not one such place.