I think she’s right on the fact that shaming seems to cross identity boundaries. Part of that could be because I think culturally we are banking on trying to build an community ethic on mirror neurons. If I can identify with the targeted victim of shaming, then I won’t shame.
Less attention is focused on the dynamics of shaming itself. Shaming is, like violence or coercion or even nagging an attempt at control of the other. Let’s get people to stop being bigots, thugs or tools by shaming them, leveraging their crowd-sourced sense of self against them for our own political, social, cultural agenda and advantage. If I cause them pain I win.