[Hydraulix989]

There's a difference between David Duke and a mainstream party candidate supported by roughly 40% of the American population.

[oska]

In the July 1932 German Federal Election, the National Socialist German Workers Party received 37.3% of the vote. [1]

[1] https://en.wikipedia.org/wiki/German_federal_election,_July_...

[subsection1h]

First, Trump is supported by roughly 40% of likely voters, not all Americans. Second, just because a belief is widely held doesn't automatically make it more acceptable than it would be if it were less common.