Granting your premise that you can pay zero tax by donating half your wealth (which I'm guessing assumes you have zero cost basis for your assets), wouldn't tha

Granting your premise that you can pay zero tax by donating half your wealth (which I'm guessing assumes you have zero cost basis for your assets), wouldn't that still leave you with... half your money? It doesn't seem worth it unless you're paying 50% in income/capital gains/whatever tax.