No one seems to have actually read the article, just the headline. This is the ultimate click bait title - kudos to the headline writer in 1939.

The tl/dr: It’s saying Hitler’s authoritarian actions were galvanising other countries to step up and protect democracy after the failures after WW1.

In the final paragraph:

It is one of the most interesting phenomena of Hitler’s political activity that it has resulted in bringing about so soon such an overwhelming and unprecedented manifestation of defensive solidarity amongst the democratic peoples.

And the final line of the article:

It would be the height of paradox if Hitler, of all persons, were destined by his statesmanship finally “to make the world safe for Democracy.”

The article is surprisingly prescient.