A property tax is fine. Portugal’s AIMI is reasonable, the rate is typical, and the compliance burden is negligible. Paying taxes is fine, though I prefer to see them used for the public good.
I would not like a wealth tax that applied to all of my worldwide assets. Valuing intangible and illiquid assets is a well documented challenge. Most European countries eliminated wealth taxes because they were impractical. It would mean endless bureaucratic hassles and limitless invasion of privacy.
I spend several whole days every year complying with burdensome tax paperwork; I want less of that misery in life, not more. My country has the most intrusive and cumbersome taxation laws and reporting requirements in the world, with no close competitors. My former home state of California had its own completely separate tax system, based on the pre-2017 federal tax laws, that required endless additional hours of suffering and confusion. Send me a reasonable tax bill and I’ll pay it, but I don’t want to spend 10% of my potential free time for the rest of my life doing agonizing tax paperwork.