[smashthepants]

He explicitly said income equality is unachievable. I didn't put those words in his mouth.

You can't answer the question of "when" if a person has already decided the goal is unachievable. Again, those were his words not mine

The temporary measures will end WHEN people are genuinely interested enough to help regardless of whether they created the problem. That is my answer. You just don't like it. And that's ok....

[tomschlick]

When, in the history of humanity, has income ever been at an acceptable level of equality?

If you/the people who support such a policy can't define an explicit goal then I'd say that's pretty unachievable.