The problem I see is that the KKK are clearly evil. PA's initiating "offense" wasn't.
But the underlying right to espouse a position is the same. In addition, I specifically acknowledged that nothing PA did sank to the KKK's level.
Besides, as I also said, it wasn't the initial event that was the true problem for me, it was PA's subsequent actions that were truly provocative. The meme of "Team ________" is well known to be supportive of whomever's name is in the blank. Even though they're fictional, the Team Dickwolves shirts is deliberately insensitive, especially in the context of already being aware of people complaining they found the joke objectionable, and why.
Were the initial objections from people who might be a bit oversensitive? Did they misunderstand the original comic strip and its context? Arguably yes.*
But to then upping the ante by expanding the joke in the face of those complaints is a violation of Wheaton's Law...well, all I can say is instant karma is a bitch.
* And I'd mostly agree with that assertion, but with the caveat that we're talking about humor that involves a traumatic event, and mental/physical trauma affects different people differently. When you do humor involving trauma, it's essentially a given that you WILL hurt someone's feelings. Its just a question of how you go forward from there.