This OP link is trash. Roosevelt was only a flexible far sighted capitalist politician willing to experiment when all the old nostrums failed. He succeeded in keeping the nation intact and preparing for the great struggle of WWII. Without the dignity and solidarity his New Deal provided, our country would have been utterly unprepared for the war, socially, morally or politically. Was he a perfect man? Far from it. Did his reforms end the Depression? Of course not. But he showed a democratic way forward that working people and common people appreciated. We did not have fascism or communism. He choose good advisors, for the most part.
My parents were of that Depression and war generation. I went to a High School built by New Deal workers. The unions that were established then continued to fight for decent wages after the war, creating a period when wage differences between CEOs and working men were closer than ever. Of course the Cold War changed much and gave an opportunity to reverse much. That is another story. Roosevelt as practical politician, Keynes as intellectual leader, pointed the way toward a compromise between capital and labor, rich and poor, that changed the world.
Yes FDR did some good things, after all he was in office for better than three terms. However, his constant and amateurish economic policies prolonged the GD. His focus was on trying to raise prices, while Americans were out of work and starving. He thought scarcity would do this. Dumb. Very dumb.
As the column in the OP points out, he was very political in his everything he did. The southern states suffered greatly during the GD, but FDR knew they were locked up D states. So he did little to help them.
Secondly, he campaigned in 1940 saying multiple times, no American boys would go to war. All the while covertly assisting the Brits, trying to incite the Germans to attack US shipping, and refusing to trade with Japan. He was actively and secretively working for war.
His administration was full of Soviet spies, in which he was warned about many times, yet did nothing. He gave enormous amounts of war materiel to Stalin, while US troops were poorly provisioned early in the war.
His unconditional surrender requirement of Germany and Japan caused thousands of needless deaths and prolonged the war.