Makes me wonder who will be next? The late Martin Luther King, with demands to remove his name from streets? Probably not even though there were many quite serious allegations levied against him a long time ago.
Kozinski has sent distasteful emails before.
I don't think he has denied that he tells off-color jokes, etc. and to some snowflakes it likely is offensive.
No one has ever accused him of having a rape button under his desk or anything like that.