kill them with fire.
I reckon you can save them and get another year or two out of them. Damp the fabric and apply gorilla glue liberally. Clamp together maybe with a wood working clamp or g clamp or something. Gorilla glue kind of expands a it cures so you may need to wipe off excess as it dries and squeezes out of joints. Epoxy would work too.
No, no, no, they need redemption.
Trainer use only I fear. If you can glue them.
Wouldn’t you need a more flexible glue for that, given that they clearly flex to have caused that, gorrila glue dries hard doesn’t it?
Good point that. Even that carbon sole will flex a little. Bit of Googling will probably reveal a better alternative.
There is cobbler glue that can be bought, but I expect thats for rubber soled shoed.
Would a local cobbler be able to fix, or is carbon too specialist?
A decent cobbler can still fix those. Our local one does walking boots and I’d trust him with cycling shoes.