I’m not exactly sure what you think the specific ask is…

It’s very general, somehow he has the funds to have a maddeningly extravagant wedding, so he can afford to have a tax burden…

It’s vague and doesn’t invite debate over the nature and nuance of his wealth, only that he can somehow pull off a celebration no reasonable person could dream of, including closing off a whole crap ton of Venice to general public use for a whole week. That’s a whole lot of spend that he can casually brush off indicating that in real terms he’s got unreasonable levels of wealth.

It’s not getting down in the details about unrealized gains and leveraging said gains through loopholes and the discussion about what taxable burden might should be associated with unrealized gains of that magnitude, it’s showing a clear example of “he has extravagant financial power, without as high relatively of a financial burden”.