The greenbelt is meant to…

The greenbelt is meant to protect us from paving everything and damaging it irreversably.
Shortsightedness will get us into a situation which can't be remedied.

My family are all business people, and we (like anyone) need a good, clean environment for now and in the future. We don't need damage being wreaked for a fast buck by those who want to externalize the costs, while stuffing their own pockets.

We won't have to worry about too many immigrants if we do enough damage to what we've got. They won't want to come here if we screw things up enough. Moreover, would they be getting anything different here? If the government here is all about stuffing the pockets of pals/donors and to hell with the suckers (voters) and future generations.