I know how you feel. But, there was no crime here. Someone accused you of stealing and their security went after you, and you complied. That’s why there’s no lawsuit. Being wrong can’t be a lawsuit. Of course we all know that there was racial bias, but even that isn’t a crime. A woman called police on a man just for being Islamic and speaking Arabic. No crime even though police came at him with guns drawn. You did the right thing, and you describe the feelings of voicelessness perfectly. I think maybe, the only thing that will help is public shaming. What’s the name of the store?