I think the bigger hit came in the progressive era of the 1910’s when senator selection was modified (yes by amendment but it lessened state power) and the tax amendment which reached into the states to the individual as well (I think prior the feds had to rely on the states largesse more). The final straw came with the interstate commerce case in the 1930s when the supremes overstepped in order to placate FDR.
Spot on. You named the big 3 and they all happened in the “progressive 20th century”, but their ideas were born in 19th century ideas out of Europe.
Had we avoided the 17th Amendment we’d not have the size and scope of government we have today. You also, might have a sales tax on the Internet.
Had we dodged the 16th, we’d not have the size and scope of government we have today.
If the SCOTUS had stood up to FDR (the frustrated fascist whose regime was brimming in commies) on the Commerce Clause we’d not have the size and scope of government we have today.