Micro-aggressions represent, at least to us and to some others, as another mechanism the academic left has created to control people. This time, however, it's not just to control ideas but to protect people from perceived slights, harsh criticism, or emotional discomfort.
In a recent paper, "Microagression and Moral Culture," sociologists Campbell and Manning add some insight into the development and understanding of the terror of being micro-aggressed. The paper was picked up by Haidt and has been discussed in other outlets.
We see the rise of micro-aggressions as an extension to the elevations of feelings and emotions over reason. Emotional life is complex, to be sure, but emotions are no substitute for honest and frank discussions rooted in facts and science.