I couldn't have more sympathy, but.......
TUPE suggests that you have the option to terminate and sue for unfair dismissal. That way you get months of uncertainty and expense, and suppose you win? In today's pilot market you could well win the battle and lose the war. You still have to find another job, and the small pile of cash you get from the tribunal won't last forever.
I wouldn't be surprised if a lot of people have come to that conclusion, and decided to grit their teeth, take the O'Leary shilling, stay current, and polish their CVs. Not nice, but that way the rent gets paid, and you can invite MOL to stuff his job at a time of your choosing.
Good luck!