What would be the basis of the lawsuit?
Did management know beforehand that their ‘pride’ merchandise would reduce sales?
Did management, by not knowing the business risk, demonstrate a degree of incompetence that warrants shareholder compensation?
Did management go against the stated will of Target’s owners, who are the shareholders represented by the board of directors?
Target's had uncontroversial pride displays & clothing for many, many years. The problem this year was the trans-focused bathing suits. It was a monumentally bad decision that totally misread the market. And perhaps deliberately so.