Consider strata, which creationism says formed in the Flood, but geologists say formed over billions of years through different processes of accretion and transformation; or the genome, which shows that each species analysed uses the same genetic code, making a single ancestor likely; or the size of the Universe and the speed of light, indicating a Universe billions of years old rather than thousands. All this evidence refutes creationism, and anyone studying physics, biology or geology to degree level will see that evidence. The vast majority of them agree that young earth creationism cannot be true.
Countering that evidence is a reading of the first two chapters of Genesis which ignores the differences between them, most notably that in chapter 1 God created humans last, on the sixth day, male and female; but that in chapter 2 God created a man, then plants, then animals, and finally a woman.
If young earth creationism is true, then God has created the evidence which these people use to refute it; or allowed Satan to deceive them, so that they imagine evidence shows what it does not. This is a particularly horrid trick for God or Satan to play; for the scientists seek truth, which is a good thing to do, and through their good impulse to seek truth God deceives them, to drive them from Creationism and Christianity alike, so that they will go to Hell.
That God would play such a trick may be seen in the words of Jesus: The reason I speak to them in parables is that “seeing they do not perceive, and hearing they do not listen, nor do they understand.” However, Jesus also compares God to a father, and when we say the creed we affirm this: If you then, who are evil, know how to give good gifts to your children, how much more will your Father in heaven give good things to those who ask him! Ours is a God of love. God is faithful, and he will not let you be tested beyond your strength, but with the testing he will also provide the way out so that you may be able to endure it.
How can we go out and make disciples of all nations, if God deliberately creates evidence to drive people away? My house shall be called a house of prayer for all peoples: How, if Satan ensnares them? God is Love, 1 John 4:16; For God so loved the world, that he gave his only begotten Son, John 3:16.
What is the point of this argument? Could not the Creationists see the evidence of geology, physics or astronomy and realise they are wrong? Well, they do not. Rather, they deny the evidence. This argument takes something they believe, and respect, and uses it to persuade them. If you do not respect the Bible, the argument will be unpersuasive, but then you will not be a Creationist, and the argument will be unnecessary. If you do not understand its value, ask yourself how people can debate the character of King Lear- he never existed!
When I communicate, I seek to speak in such a way that my hearers will hear. The problem comes when someone is so benighted that s/he thinks humanity is simply evil, and “Love” means saving a few million, and sending billions to Hell.