The sum cost of the worlds luxury projects like yachts or super mansions or personal jets etc is still a tiny fraction of the economy, taxes are a much bigger concern than those.
And other than such projects the wealth of wealthy people are resources used wisely investing in production capabilities of products people want to buy, like new CPU generations or new warehouses etc. This is how most resources governed by the wealthy is allocated, which seems entirely reasonable, having a small fraction of that get lost to their personal whims seems like a very cheap price to pay for the efficiency of capitalism compared to other systems, we already pay like 40% in taxes, why not pay 1% or so tax to capitalism?