Athanasius on the solidarity of mankind

In explaining the effect of Christ's incarnation, Athanasius elaborates a theological anthropology:

For the solidarity of mankind is such that, by virtue of the Word's indwelling in a single human body, the corruption which goes with death has lost its power over all. You know how it is when some great king enters a large city and dwells in one of its houses; because of his dwelling in that single house, the whole city is honored, and enemies and robbers cease to molest it. Even so is it with the King of all; He has come into our country and dwelt in one body amidst the many, and in consequence the designs of the enemy against mankind have been foiled and the corruption of the death, which formerly held them in its power, has simply ceased to be. For the human race would have perished utterly had not the Lord and Savior of all, the Son of God, come among us to put an end to death.

(Athanasius, On the Incarnation, Chapter 2. Emphasis added.)


One wonders, how far does this solidarity go?