Citizens of Canada, Australia, New Zealand, and Great Britain, how would you feel about legislation to allow you to freely travel, trade, and live in each other’s countries?

Minor detail, but highly relevant if you want to pursue this: You’re describing a multi-party treaty, not legislation.

Sounds like a joke. I mean seriously mate that was what happened during the colonies and it seems too ironic to be a normal question

Is great britian getting back into the colonialism game?

Dumb because wasnt that like a key factor in brexit

The UK had that with the EU, and half the country threw a fit.