I'm sorry but this is just unacceptable.
I can only speak for my view, and colour me eccentric and out of step, but in my off the wall mind, although I know, and totally accept that the grammatical way of saying this is, “ I COULDN’T care less”, to whacky, far out me, “I COULD care less”, seems to reinforce the fact that I couldn’t give a dozen rats posteriors.
I apologise if it upsets British minds, but there is a small part of my DNA which isn’t British, this prompts me to occasionally go outside the tent, and **** in, I hope that this is understandable, if not totally acceptable.