Of course they didn't because NO ONE actually think they will go bankrupt for switching to Classic and increase bitcoin's capacity.
If the vast majority do not agree then you end up with 2 Bitcoins.
Do you not understand this?
Yup, that's why there is a 75% threshold so your scenario won't happen. 75% is more than enough. It means on the worst case, 75% agreed to leave at most 25% behind. I doubt 25% will stick with the old chain anyway.