My thoughts:

Some partial validity in the above.

If nothing offends an individual, they cannot be offended.

A prerequisite cognitive state does not necessarily determine potential for a future cognitive state.

An individual for example might not feel ashamed, but with certain new conditions, feel ashamed at a later moment as they are still susceptible to the concept of feeling shame.

The third point - Often times many people would not consciously agree to feel a particular way - depressed, angry etc - the feelings arise without prior agreement, often in a reactionary moment.
So certainly the aspect of choice I would agree with, but there is the ability to choose, and conscious self-awareness or mindfulness to be considered as well.

Essentially an over-simplified way to view, but still somewhat valid in terms of universal reflection.