I understand gliene most of the time but can’t quite work out how this means “Who cares anyway”.
Checking on Tatoeba, it seems a common expression, with only a couple of variations on the same:
1. Comunque a chi gliene importa?
2. Comunque a chi gliene interessa?
And the slightly more “colourful”:
3. A chi cazzo gliene frega?
Ah, I found this useful post explaining the construction (post #4 if it doesn’t directly take you there - disregard the title):
But actually it seems you might also just as easily do without it, given the heaps of sentences which don’t include it:
https://tatoeba.org/en/sentences/search?from=&query=%3Da+%3Dchi+%3Dimporta&to=
@sindaco, mille grazie davvero! This sheds a lot of light on the gliene. Hmm, this is where Italian grammar lets us know there is so much more to learn. È una sfida no?
Thanks again, I had no idea importarsene existed! A dopo…