For sure the demand side of the equation needs to be addressed instead of just saying 'duh we don't have supply, so all migration needs to be severely curtailed not just cash from overseas. But I do like the idea of turning the golf course into lovely green community with lots of trees preserved there. I think it's a great idea.
We can do both but I get the problem with developing it while doing zero on demand side - it will just attract investment/migration if we do not cap those first.
Still, I like the idea a lot.