Such important questions could and should be decided by society collectively through its political process.
We talk to each other and decide about things collectively.
It was then that they collectively decided to form a band.
"We decided collectively not to go forward and make a bid."
The management team collectively decided to sell the company because it is getting too big for them to manage.
We collectively decided to set up a sting of sorts.
And I think we collectively decided, 'you know what?
Hence we collectively decided not to make the movie.
The villagers collectively decided not to pay any taxes.
At some point they will have to get off stage and collectively decide how they want to live with the Israelis.