I think Alex was basically right in what he said, and was right to call a one-off meeting to discuss things. At the end of the day, what he said benefits everyone on the house.
The other housemates seemed to gang-up on him for being a toff instead of thinking about what he said. They are free to continue walking in piss, sitting on a sh*t-covered toilet seat, and clean themselves in a dirty bathroom. But that's not Alex's fault.
Having said that, I still think Alex should be evicted at the earliest opportunity....