I just told you that I would have accepted write-ins
I accepted a candidate that wasn't even a Senator on the ballot! You consider incorrectly, but I'm not going to argue over that. It was nearly a decade ago.
You've failed to provide any reasonable argument in my opinion as to why the Senate can't elect a PPT in it's own way.
The candidate who receives the highest number of votes does not say "the declared candidate". It just says "the candidate". This comes down to a matter of Senate independence. Do we not have the right to elect candidates in our own way, especially when, and I can't stress this enough, there is nothing in the law that forbids write-in voting. You keep saying the "candidate", but as I understand the law, the "candidate" could be either a declared candidate or a write-in candidate.