Exactly. It's impossible to solve the real problem, namely infinite demand for free land in an upmarket suburb by making it even more attractive to those seeking the freebies.

The only solution, harsh as it is, is to reduced the IY population by forced removals.

And forcefully prevent further settlement.

None of this will happen, of course, so if you own property in HB get out while you are still able to sell. This is only going to get worse.