[If you assume, even for the sake of argument, that an income tax is untenable (politically OR constitutionally)]
Let me get this straight.  You criticize me for accusing you of spreading false information when faced with facts I don't like and then present an argument without any facts?  Why would anyone assume that?  Simply because you say so?  We could look at churches that tithe (a form of taxation) and have investment with dividends and it is clear that the two are not.  Thus why I continually (waste time) to ask you to present a source for how you come to a conclusion that is contradicted by available evidence.  A request you continue to prove my expectation of going unfulfilled time after time.
[I suggest you study the Zobel decision in detail to better understand the principles involved.]
What exactly am I supposed to be studying?  I asked you for the basic premise of why you cite this decision and guess what?  I'm still waiting for that request to be fulfilled.  Imagine that!