I thought the Garfield avatar was amusing and completely harmless. In fact, if some kid asked his mom or dad what it was, it provided a valuable teaching opportunity, IMO. To me it was, in no way, offensive. That it was banned is beyond comprehension, to me.
With that said, you have complained in at least three threads in three different forums. SDS has seen your complaint. He has responded.
That's why I say, "Get over it." Time to move on.