I appreciate you elucidating your opinion a bit. I suspect the article on the 16th amendment doesn't mention Eisner v. Macomber because Eisner v. Macomber was largely made irrelevant by subsequent decisions by the Court. Or so the Wikipedia article on that decision explains:
https://en.wikipedia.org/wiki/Eisner_v._Macomber#Aftermath. I recommend you read that section, and also the following section that goes into how Eisner v. Macomber is often misapplied or misunderstood by anti-tax activists. Wikipedia is of course not the final word but my experience is that it gets things like this correct nearly 100% of the time.
The term in the 16th amendment is "income", and as the Wikipedia article states, "An important principle taken from Eisner v. Macomber is that the word "income" in the Sixteenth Amendment is generally given its ordinary plain English meaning." So yes, your income from your job is the amount of money your employer has agreed to pay you. Or customers, I suppose, if you own a business. By the very definition of currency that is exactly how the time and energy you've put into your labor is valued.
But that Amendment is perfectly clear.
Arguing to change the Constitution is very different than you saying that income tax is unconstitutional, which is where this discussion began. If you want to get into reasons why you feel the 16th Amendment should be changed/revoked, we can do that (in a different thread, preferably). But in my opinion you shouldn't claim that income tax is unconstitutional when it clearly is. That just weakens any other arguments you might have.