It is backed by empirical and testable evidence. Creationism and ID isn't.
Here's the morphology part. (Just a small part)
On Genetics
DNA Chunks, Chimps And Humans: Marks Of Differences Between Human And Chimp Genomes
What we see is there are morphological similarities that we've known for a long time now but now we can say, with more accuracy, that we are related genetically. We also know that in various areas of the genome we are different. Biologist maintain that with similarities and differences we are still related. The evidence is there and it's testable but no one in the creationist camp can falsify the fact that man and primates are genetically related.
If you think a god created humans fully formed, there is no Evolution and the earth is young then you're going to have to work hard at falsifying the Hominid Fossil Record, the Genome as well as trying to explain where this (see below picture) fits concerning "creation"
Compare that skeleton to this. The small one on the right side is of a modern day human.
Do you know what it is and where it's supposed to fit?