ID is poor theology because it reduces the deity to the role of a genetic engineer slightly more advanced than our current scientific level.
ID is not a theory because it has no predictive power and cannot be falsified.
ID argues through poor analogies. Placing the parts of a watch into a box and shaking the box is not the way watches are made. If you place the parts of an animal into a box and shake the box, you won't get a working animal.
The dogma of "Irreducible Complexity" is flawed. Eyes are commonly cited as an example of a body part that cannot have evolved. Yet nature is full of examples of creatures that have simple eyes. The eye of a sea urchin is nothing more than a pit of light-sensitive cells. The eye of a nautilus is nothing more than a pinhole camera. Yet ID proponents often ignore these and other examples because they weaken their arguments.
Most important of all, ID proponents cannot argue rationally. I once saw an ID troll asking for evidence of evolution on a forum, but then making a rule that said antibiotic resistance in bacteria was not evidence. Well, it IS evidence. To paraphrase Galileo:
And yet they change.
It's not even worth debating these crackpots on theological grounds because they cannot understand that a religious holy text can have errors and omissions in it.
- The Bible has been translated from one language into another several times, and to some extent the original meaning is lost. "Fiat lux" does not mean "Let there be light", but "Let light be made".
- Leviathan and behemoth are not generic terms for big animals, but had very specific meanings like "elephant" or "hippopotamus". Yet the meaning has been lost over time.
- 1 Kings 7:23 incorrectly gives the value of pi as being equal to 3.
And what of creation myths? Should creation myths other than Genesis be taught in Sunday school? If not, then one would do well to read up on what Jesus had to say about hypocrisy.
Finally, if you meet an ID proponent who states that God created life on earth, you can have a bit of fun with them. Insist that Satan created life on earth. If they ask why you say this, just point to the evidence of suffering in nature. Parasites. Predation. Nature red in tooth and claw. These are not the hallmarks of a benevolent deity but a malevolent one. So, logically, Satan must have created life on earth and God had nothing to do with it.