Again, there is no reference to "rich" vs "poor" in his argument. The argument is just a basic restatement of property rights - people own that which they've purchased through trading goods, services, or money. This applies just as much to any human being, except the truly indigent with no property whatsoever.

Why is it greed for someone to keep what income/wealth/property they've earned while also is not greed to claim that someone else's income/wealth/property is actually owed to another group?

> The argument is just a basic restatement of property rights - people own that which they've purchased through trading goods, services, or money.

Your contention is that some institutions count as property rights (contract law etc), but taxation law doesn't. I'm telling you the line between them that you draw is drawn purely with ideology.

Taxation law isn't some adjustment that takes place after property law, it is part of property law. $X of tax paid by party A that ends up funding $X of social security payments to party B, literally belongs to party B. It is the property of party B. Not party A. It is not "someone else's" in any way.

Well, if you believe that all money one might have control over belongs to the poor (or somebody else) then I guess that's fair. But that's a pretty uncommon belief.

In that way there's nothing special about the quote because most people generally recognize private ownership in everyday speech.