Matthew 11:20-24--20 Then He began to denounce the cities in which most of His miracles were done, because they did not repent. 21 “Woe to you, Chorazin! Woe to you, Bethsaida! For if the miracles had occurred in Tyre and Sidon which occurred in you, they would have repented long ago in sackcloth and ashes. 22 Nevertheless I say to you, it will be more tolerable for Tyre and Sidon in the day of judgment than for you. 23 And you, Capernaum, will not be exalted to heaven, will you? You will descend to Hades; for if the miracles had occurred in Sodom which occurred in you, it would have remained to this day. 24 Nevertheless I say to you that it will be more tolerable for the land of Sodom in the day of judgment, than for you.”
If Mills or anyone else refuses to accept the evidence God has left us, and there is plenty of it, then why would they accept Him if they saw a miracle? I am sure the atheists would figure out some way to explain away the planets orbiting in different directions in a naturalistic way. The problem isn't the evidence the problem is their hard heart.