Interesting article, but Reconstruction was much, much more complex. I realize it's impossible to cover all the aspects of such a subject in a short article, but there are so many more factors that were in play, it's hard to distill them down to as few as 10.
One factor that was huge was the complete disenfranchisement of Southern whites. The federal government said the Union had been restored, but Southerners were not able to claim their rights of citizenship, whether they were plantation owners or poor farmers. It bears mentioning that while the economy of the South was heavily dependent on slave holdings, only about 8 percent of all Southerners ever owned slaves, or wanted to. There were, in spite of what you may have read, pockets of heavy Union/abolitionist sympathies in the South. These were generally among family farmers who had never owned slaves and considered it a grave sin to do so.
The problem was that the plantation owners were the ones who served in Congress, not one of the 92 percent of white farmers who had no interest in slavery.
Enacting radical Reconstruction (as opposed to presidential Reconstruction) did incalculable damage both to the South and to the nation as a whole. It crippled the South economically for decades, which rendered it unable to keep up with the industrial North in commercial ventures. As a result, the entire nation suffered in the late 1800s, and as late as the 1930s, farmers who were still suffering from the economic effects found their resources further damaged by the Great Depression.
Sadly, humans determine pecking orders wherever they are, and it was the former slaves who were sent to the bottom of the pecking order. It is worth noting that they were cheated as badly by the Carpetbaggers who came South. These con artists took advantage of the former slaves' illiteracy and ignorance to fleece them of every dime they had, and then some. It was criminal how these people were treated by the people who were their supposed liberators.
Radical Reconstruction was a direct catalyst for the formation of the Ku Klux Klan, as well as the later horrible Jim Crow laws. These were all the poisonous fruit of a rotten tree.
When white Southerners were denied any form of justice, they formed vigilante groups, and that's where the Klan started. Jim Crow laws were a natural, evil extension of this mindset.
Radical Reconstruction was meant as revenge and to punish the South, even those who had never taken up arms against anyone. Revenge, however, has an ugly way of backfiring, and the USA as a nation has suffered the effects of the venom ever since.