If you look closely at the arguments for transitive life forms they have no intermediaries. There is nothing in the genetic record that demonstrates genetic change aside from mutation. But mutation is generally degenerative. We don’t find mutation creating higher life forms.
In simpler terms:
1) There should be billions of “missing links” in the fosil record. (The argument is it has been so long they are all gone - if you follow that rational you have to do away with the fosil record entirely as an incomplete source for information.)
2) DNA and Microbiology now tell us a different story of origin, from when Darwin arrived at his theory. Small things are infinitively complex. But instead of investigating why, the “establishment” is instead pushing the old theories harder.
3) This concept only works with a very very very old planet. If the earth is proven young, as it is, this whole fantasy will unravel.
The very first image of the asteroids speak the loudest: explosions and chaos don’t create complex life, they destroy it. Think about it; order, design, and complexity do not spring forth from cataclysmic events. Newtonian physics and thermodynamics make this clear.
If evolution were true it failed when the dinosaurs died off during the ice age. They failed to evolve past that. And why were their brains smaller than ours? The hierarchy of species shows bigger is smarter, no?