Nothing listed in this comment is going to lead to "the demise of the starship project". And nothing listed there is original. We've heard it time and time again, when F9 was ready to launch, when F9 was ready to land, when F9 did land (bbbut they have to do it constantly), when F9 managed the first re-use (they need to do it at least 10 times so it's worth it) and so on and so forth.
They've now launched AND landed >600 times already. Let's just say they know what they're doing.
Anyway, for a bit of context: the current first orbital flight, with 26 satellites deploying right now, is adding the same amount of Starlink bandwidth as 10+ F9 launches. Let that sink in and re-do whatever cost/opportunity and "management" spiels you need to do. One flight > 10x F9 flights.
That alone justifies the Starship. The rest is the cherry on top.