An invisible y-axis separates the good/bad, positive/negative, or agree/disagree categories.
https://depictdatastudio.com/charts/diverging-stacked-bar/
Example 1
70% of Hispanics say earth is getting warmer due to human activity–compared w/ 44% of whites.
Source: twitter
Example 2
The French held more favorable views of both Jews & Muslims than many other Europeans
Source: twitter