That problem you describe is mainly created by low interest rates. In the past with low interest rates it cost them nothing to keep them empty and at the same t

That problem you describe is mainly created by low interest rates. In the past with low interest rates it cost them nothing to keep them empty and at the same time the prices of the property appreciated. Today, with a bit higher interest rates, it becomes more expensive to hold the property empty and the prices do not appreciate or at least not as fast. However, I believe we have not yet seen the effect of these interest rate increases as the landlords typically have long-term fixed borrowing costs which do not need to be renewed until a few years for most of them so unless the interest rates continue to stay at current levels or higher for many years this situation will maybe not improve.