Despite their flaws the Founders attempted to create a system which prevented a concentration of power, especially around the presidency. Time has seen an expansion of the federal government, particularly in the executive branch, in ways the Founders never envisioned.
The War After the Election [https://medium.com/illumination-curated/the-war-after-the-election-545de96aa4ca?sk=627c55d616d9296af3e398f1686493a4] describes how the excess of presidential power brought us to the brink of martial law on January 6 and contains a link to legislation regarding how the flow of power towards the executive branch can be reversed.