Look at it from their perspective. If they pass it, they have to face the wrath of about 60% of the electorate.
If they fail to pass it, they have to face the wrath of about 60% of the electorate WITHOUT MUCH OF THEIR BASE.
Which alternative would scare you more in their position?
Garde la Foi, mes amis! Nous nous sommes les sauveurs de la République! Maintenant et Toujours!
(Keep the Faith, my friends! We are the saviors of the Republic! Now and Forever!)
LonePalm, le Républicain du verre cassé (The Broken Glass Republican)
You’ve got a point. They’ll face the wrath of nearly 60% even if they vote no because of everything else that’s happened.