> You would assume that most home owners would not be in favor of something like this, as it obviously would seek to decrease the value of their property by reducing the potential acquirers.
It's obvious even from the headline that this "ban" only applies to newly built homes, meaning that if you own an "older" home (whatever the definition of that ends up being), this does not apply to you. So in a perverted sense, being an Amsterdam home owner may be beneficial, since the politicians are rigging the market to your advantage, if you are an "older" home owner.
As for renters of these "older" homes, I'd say the outcome is fairly predictable: your rent will skyrocket as the demand for your landlords real estate increases, unless there are already other political tools in place to cap rents.