This attitude really isn't helpful in the least. I take it if you logged in to find you had zero gil in your account tomorrow you wouldn't complain right? Because to complain would mean you were feeling "entitlement" to your "imaginary game currency".
The fact is it would be in SE's interests to give players a legitimate means to either sell houses directly to other players or get the relinquished 80% value back at will (not after 45 days). They need to encourage players to give up plots they don't want, and imposing tighter and tighter restrictions on players relinquishing their plots is only going to make the shortage WORSE as they will not willingly give up a plot only to lose the huge investment they put into it.
SE's flip-flopping stance on the issue really hasn't helped either as they have been directly quoted as saying this was fine back when housing first released. They only turned into a crime after they screwed up the auto-demolish so badly and the same people bought every house just to resell them. They SHOULD have put an account limit of one house prior to the demolition.
There is nothing greedy about refusing to give up a plot you saved up to buy when you stand only to lose your gil by doing so. A lot of the people selling their plots legitimately want rid of it for one of any number of good reasons. To give you just a few, they may be: transferring servers, moving house, leaving the game for longer than three months (the auto-reclaimed gil only sits for one month so if you know you'll be gone longer you HAVE to sell it). In these cases the players selling the plot do not WANT to price gouge other players, they simply want to get back the gil they invested. You cannot blame people for that.
If anyone here sounds 'entitled' it is you for demanding players willingly sacrifice their investment just so you can get a house now, now, now. The problem here is NOT the people selling the houses; it's the broken system that doesn't even allow it legitimately in the first place.