Mint chocolate, I agree.
But mint chocolate chip ice cream stands alone.
The 2 flavours are distinct without blending, but do complement (so, I can understand the mint chocolate even if I don't appreciate it). And the chocolate chips add texture.
I would agree with you, but a few years ago I discovered peppermint ice cream.
It has the nice mint, none of the chocolate garbage, and no texture contamination (peppermint is entirely smooth, no chocolate chunks mucking up the enjoy-mint)
My ex used to work an ice cream factory (Walls I think but not completely sure I remember right). She said she wouldn't touch mint with a barge pole. Apparently, any wastage from other flavours was chucked in the mint one because mint is such a strong flavour it masks the other flavours.
On a brighter note, in between flavour changes on the equipment, they would spend a whole shift cleaning. For flavours marketed as allergy friendly, they would spend two shifts cleaning, so didn't need to put "may contain traces of..."