I had a creationist professor who had a whole bunch of bullshit specifically intended to "debunk" aging using Polonium half-lives, etc...
You'll never "disprove" it for them, because they don't want it disproven. They'll just find the relevant page on Answers in Genesis/Ken Ham's website written by someone with a Ph.D. from Pensacola Christian College and consider it done. They're not in it to actually find the truth. It's not a good-faith discussion/debate.
I had a "Creationism vs evolution" class because I did one semester at a religious college before realizing I wasn't religious. It was about what'd you'd expect, and no, the credit didn't transfer to a real college
I suppose, but the point is they do a job that requires them be knowledgeable of the science, and yet can compartmentalize things to do that but also have beliefs that run very much against what they observe in reality. Hell, geology was a science born from creationists trying to find evidence of the Flood, who then chose to go the path that the data took them, not the Bible.
An agenda? Interesting. I'd love to hear what agenda you see when it's simply discussing how Christians over a few centuries starting looking for the remnants of the Flood to prove the Bible but found the opposite, and some followed reality, while others dug deeper into their book and ignored what they had found.