The one thing they all seem dedicated to is that Theresa May must not resign.
She's stuck.
The is only one answer. She's going to resign.
It's not a calamity, it's just a resignation of one prime minister who can't get anything done. There is always someone else to do the job.
May goes, new prime minister, blank sheet, start again. I've seen how it works. How fast people disregard the previous occupant of that job.