I think you may misunderstand or I do. NIST is concerned a 20 year secrecy requirement may be broken, I have seen no plausible projections stable qubits will exist in sufficient volume to compute current rsa 2048 bit keys.

Sure, there are jurisdictions without tax. America isn't one of them and the IRS assess worldwide income. If we're not talking about America then getting rights to use non tax jurisdictions you want to live in or be a citizen of is expensive and hard. Nor are most OECD economies zero tax. People who already have tens or hundreds of millions can afford to construct non Dom status. If you aren't already rich it's harder.