Hmm, well I didn't think this needed clarifying but the internet is notoriously bad at transmitting humor (or maybe I am). But I was being facetious with respect to the examples I gave.
By capturing private wealth, what will most likely happen are taxes on existing wealth (national property taxes, increases in the estate tax, etc.). National debt is uncollateralized and will always be this way, so sovereign debt holders will never have claim to the physical assets of a nation. It is country themselves that can change laws to appropriate private wealth. Constitutions and laws vary in the extent to which this is allowed. There is the notion of an unconstitutional level of taxation in the US.
By capturing private wealth, what will most likely happen are taxes on existing wealth (national property taxes, increases in the estate tax, etc.). National debt is uncollateralized and will always be this way, so sovereign debt holders will never have claim to the physical assets of a nation. It is country themselves that can change laws to appropriate private wealth. Constitutions and laws vary in the extent to which this is allowed. There is the notion of an unconstitutional level of taxation in the US.
As for the rest of your ideological rant.
Anyway.