This was buried under an earlier post but merits more visibility...
The majority of semiconductor products being manufactured across all product lines in the industry don't need to be manufactured on the latest process technology. Intel's foundry business should be going after the non-leading edge customers if for nothing more than gaining experience in working with external fab customers. Intel has excess fab capacity with the factories it already has so why is it building more? Even if 18A exceeds TSMC at some point why would leading edge customers want to switch to Intel? TSMC won't be behind for long and they have an incredible amount of experience with working with external customers...that is all they do.
Intel needs to stop being obsessed with being the industry leader and focus on just being an industry survivor. Go after the lower end product manufacturing and build experience and work back to being an industry leader. Do some self reflection and figure out why businesses don't want to work with you. Make changes in how customers are treated. You really aren't the smartest people in the room and haven't been for quite a while.