It is certainly true that States were relatively more sovereign in those days before the Civil War and the rise of national corporations, industry, transport, media, etc. etc. But with the exception of slaves I think average Americans were quite well informed in revolutionary times. The level of political discussion and literacy was quite high — remember there was a revolutionary war fought throughout the colonies — and the Federalist Papers and Thomas Paine’s pamphlets both show that in different ways.
Mostly I think it isn’t just that “we have reversed” the extreme state’s rights policies of the past, but that there was a more or less organic change that occurred (with some terrible bumps in the road) that led to present U.S. global power.