It also ties in with the concept of "[some opinion] is offensive", as in "Are you AWARE of just how OFFENSIVE that statement was???"
Opinions are not offensive. PEOPLE may DECIDE to be offended by a communication or viewpoint.
So, from my viewpoint, it comes down to two factors to consider before opening one's mouth:
1) Is what I'm about to say going to result in some person being feeling offended? Probably, these days, ANYTHING you say will result in somebody, somewhere, feeling offended by your opinion, your attitude, or even your mere existence.
2) Do I care? To what extent are the feelings of the person or persons who claim offense important to me? Unless the person in question is my employer, or my wife, the answer is generally "not hugely important".
This brings us to the current situation where we increasingly have to watch we don't offend the easily-offended, because they will try to harm us, whether by trying to get us fired, ostracized from some group, or otherwise.
For long-term survival of "normal" society, it may be increasingly important to work diligently to reduce the power of the "perpetually offended", and their enablers.