What trend from 100 years ago are you talking about? Wilson’s naive internationalism and unthrottled interventionism to make the world safe for democracy was deeply and decisively rejected by Americans. The country became disillusioned and committed to isolationism. It would not join the League of Nations and adopted tight country of origin immigration quotas.
This highlights a deeper point: the imposition of internationalist interventionism and loose immigration rules done against the will of the majorities in each country is highly undemocratic. A clear-cut recent example was shown when the President of Italy refused to accept the results of the election and instead demanded someone more EU friendly as Prime Minister.
Some self-annointed leaders do not like to see populist victories. They appear to be willing to undermine democracy in order to hold back ascendant populist and nationalist movements or to enact measures they cannot get passed by the usual democratic and constitutional means. The realization that leaders of democratic institutions won’t abide democracy is part of what is driving the dynamic of current distrust.