Currently we have the tags young-earth-creationism and intelligent-design. The questions aren’t used for questions that are about those movements, but to categorise claims that are made by those movements. Should we get rid of these tags as per the logic of [donald-trump], you're fired! ?
I think not: a claim that the Earth is young is (by definition) young-earth-creationism. People who believe that the Earth is young are young Earth creationists, not matter whether they are part of any official movement.
Same for intelligent design, it's a subject of claims, not a movement.