Not to speak for dclary, but I think the reason he asked the question in the first place is because he (or someone really close to him) probably never experienced the pain, fear, and hopelessness that the stolen-symbol evoked. And that's certainly not a crime. While I'm fairly certain an unknown percentage of the population would look at the t-shirt and snicker, I think everyone's done a good job explaining why it would be so offensive to a lot of people and how it could incite ill-will towards the person wearing the shirt.

I feel sorry for the people of today who may feel shame for using the symbol in its original form, context, and spirit. Hitler stole something from them...I wish they could steal it back.