I can see that youāre personally affected by this topic and that sounds very difficult. But CR didnāt make a joke about, or mention, alopecia, and for all we know he didnāt even know about it. You are assuming he did, but he might not have. He was making a stupid joke about the fact that she looked like GI Jane who it could argued was actually an incredibly fit, strong, independent - and all those things JPS approves of - woman.
And all that aside itās an extremely dodgy road to go down, deciding that some subjects are out of bounds for comedy. Who gets to decide - anyone who is personally offended by something? That would leave very little room for comedy. Will Smith has set an incredibly bad example here.