The fundamental fallacy is that an asset may have increased in value but you aren't actually richer until you sell it and realise the profit. And it is at that point when taxes become due. Remember that line in adverts about investments going down in value?
So it's completely irrelevant to the text you wrote it in "reply" to.
In my post which you described as "the fundamental fallacy", I explicitly stated that was "very relevant":
You wrote:
And you do realise that the net worth of these people is largely determined by the values of the companies they own and they cannot realise that value without being taxed?
and I replied to that with:
Very relevant. Generally, taxes are on income rather than assets and there are very good reasons for that.