Property tax as it stands is unfair to the core. Especially when combined with current taxation.
For a €5000 monthly salary on TRR, as a company you have to make a cut of somewhere towards €15000 per month. That is to say, you are contributing €10k to the coffers which you never get back.
Since you have a higher standard, you will of course be able to afford a bigger property and take out a bigger loan. With a bigger loan you contribute more to the bank and the state, and with a €5000 salary you contribute more too. About 66% why? For the current education system which is going nowhere? For health care, which has to be paid extra anyway to get anywhere? For the €400 pension?
I understand that in Scandinavian countries they have no problem with that, but there they actually get something in return. Also, the path to a property there is not 20% as thorny as in Slovenia.
As a reward for giving up every year, for saving everything to realise your dream of a dream property, for throwing enormous amounts of money at the state, you are hit with a proportionally higher property tax? Disaster.
When I was 12, I used to put aside pocket money to buy a bicycle. It would have been ironic if, when I bought it, my parents had told me that now I would be paying a parking fee for my bike in the basement that was proportional to the value of the bike. You are not actually doing anything with this tax. Maybe fewer people will be able to afford luxury housing and property, and maybe John next door will be in a better mood because his neighbour will not have such a higher standard. But that is all.