In the November 1932 elections in Germany, the socialist and communists got 221 Reichstag seats to the Nazis 196. 10 of the KPD's seats gained since the July 1932 election were from the socialists - the Nazis helped radicalize German left workers. On February 20, 1933 the CEOs and board members of Germany's Fortune 500 equivalents pledged millions of Marks to the Nazi party, five months later the Vatican signed the Reichskonkordat with Nazi Germany.
Nothing like that is happening now because there is zero threat from America's working class against the system. It has been losing power with each year, and even college educated professionals have been losing power for decades, something chronicled thirty years ago in "Fear of Falling". There is also no external threat of any historical significance. Fortune 500 boards have no desire to bankroll the efforts of people like Andrew Torba (Y-combinator funded Torba, who did gab.ai, and Paul Graham talks about the genetic intelligence superiority of certain races, but this is not big capital). Trump has been talking about pulling troops home, not about more Lebensraum.