They basically said the cost of company formation (doesn't really matter where, but anywhere that matters, like Panama or Seychelles or BVI or Macau or etc), mail handling monthly payments, virtual office payments, legal and accountant time, etc exceeds more than 99% of peoples' actual tax payment. That includes people making 500k. And that there is virtually no point in doing so. Doubly more if you are US based due to reporting requirements and massive additional costs for that.
IANAL, but based on what I've been told you are not able to easily do this if you are employed by a normal company - it requires that you hold a company in the first place to have intellectual property, branding to be able to licence cross-shell [easiest compared to trying to shuffle physical items of value around], etc, and that the company gets the payment, so people making 500k FAANG salaries are out as they are FTE employed.
And that your cost of finding the 'correct' accountant that has experience in this will far exceed your previous accountant cost.
Also with inheritance tax in the US, your estate isn't taxed unless it's worth more than $11.18 million [0]. So doesn't matter for most people. It's estimated only %0.2 of estates pay the tax.
[0] https://en.wikipedia.org/wiki/Estate_tax_in_the_United_State...
Maybe an entrepreneur just needs to make that a web form. Fill in details and generate the same form for $10 instead of $1000.
And then some robots to print, seal up, and mail the envelopes and we're done.
I should be able to spin up a Dutch shell company like an EC2 instance. Maybe have "AWS" regions for Cayman and other places too and a Python API to spin up shell companies in arbitrary locales.