Answer: First of all, this could not happen. As more and more people in the world correct themselves, the field created by them will envelop the rest, and they will understand and value spirituality—the attribute of bestowal—more, and they will also aspire to it more.
That is why a hypothetical situation, where all but one person is corrected, is virtually impossible.
However, even if we assume that this could happen, I, obviously, would gladly come to that person and try to convince him to complete the general correction of the entire world, of all times. It is possible that I would succeed.
From Kab TV’s “Fundamentals of Kabbalah,” 1/5/20