The Yale University Art Gallery’s show“Munch and Kirchner: Anxiety and Expression” — running now through June 23 on the gallery’s fourth floor at 1111 Chapel St. — begins with a moment at an art gallery over 100 years ago that feels like it could happen today, or any time. In 1912, the text relates, there was a“monumental exhibition of modern art” in Cologne, Germany that“aimed to illustrate how the most cutting-edge groups of the day drew inspiration from the work of a slightly older generation.” That big-tent approach, however, turned out to be fraught.