I think I will repeat myself in saying this, but the only thing I am saying is that when a census that is mandatory is turned into a survey that is voluntary, the quality of the information will fall.
The government has every right to go down this path. Nobody is disputing that the government has the right to do whatever it wants, and our job is to implement the government's decision--as long as we all understand that the statisticians are saying that the quality of data will be lower.