What's the average effective tax rate for high-net-worth+ individuals if unrealized capital gains are included as income? It seems like people get an increasing level of control over their taxes as their networth increases. Choosing when to exercise options means you have some control over AMT. If you invest in indices, it looks like direct indexing has a lot of tax benefits over an index fund. You can get variable and fixed rate loans against your investment accounts.
It's not a good idea for tax minimization to be the main goal of your investment strategy, but it seems like people can get access to a large portion of their investments without actually realizing capital gains.