I was with you until this. Suggesting self-compassion as a response to the trauma that induces toxic shame is insufficient for a few reasons. First, as you’ve noted, shame isn’t necessarily “rational,” it’s embodied. Approaching it with cognitive processes (ie “positive self talk”), then, won’t be impactful. Beyond that though, most trauma is derived from oppression (systemic racism, neoliberal capitalism, etc.). Telling a fat person, for instance, who is reminded incessantly they are intrinsically shameful because of a demographic characteristic to practice self compassion isn’t going to alter their environment to make it more safe. That’s where activism comes in (and as someone who is marginalized on multiple axes, I say from experience that it’s the only thing that has meaningfully ameliorated my shame based identity).