When the facts are revealed, those who have been raised on hagiography, the "Roosevelt is God" groupies, don't try to deny the facts...the squeal like stuck pigs, they obfuscate, they attack the one revealing the facts.
Why not admit the truth?
Answer: because once any truth is admitted, the flood gates would open and their most closely held beliefs and worldview, i.e., Roosevelt and collectivist governance, would dissolve, like sand castles when the tide rolls in.
1. It is a fact that the economic downturn that Republican Warren Harding face was at the least comparable to the one that Franklin Roosevelt face. Harding's plan, "...tax cuts, spending cuts and relatively non-interventionist economic policy,..." ended the recession in a year and a half.