I sorta see what you are saying... but I would think that an evolutionist would think that 'Intelligent design' is more logical and supportive of evolutionary anthropology... NOT... 'theistic evolution'.
In order to understand it you have to realize that "Intelligent Design" as it's usually referred to does not have the same meaning as "Designed intelligently by God".
This is the biggest thing that confuses people and that's why it's so hard to explain.
The "ID movement" is a ruse to get creationism taught side by side with science in schools, and nothing more.
You can believe that God intelligently designed the universe and life and at the same time reject the "Intelligent Design" movement.
The ID advocates chose that name on purpose to be tricky and devious and confuse people. I mean if you came up to me and asked me if the universe was designed by an intelligent God, I'd say yes, but that's not the same as following the "Intelligent Design" movement.
The reason is that there are TONS of dead-end species.... A vast majority of species that existed in the past are NOT directly related to current species. Why would G-d do this?
That's a great question. One of the things I learned in biology is that every species in an ecosystem affects every other species in an ecosystem. There were other species who have descendants that live on today whose ancestors were affected by now-extinct predators, prey, or competitors for resources that helped the living species to become what they are today. For example maybe a bunch of shrew-like animals were getting eaten on the ground, so they took to the trees, and became what's known as a tree shrew. The predators that were eating them might be gone now, but tree-shrew like animals eventually became primates.
Why would G-d create primate after primate, hominid after hominid, reptile after reptile, etc etc and then kill them off?
Since God is the one who created them, God has the right to destroy them. Also some species may have served a purpose for a time but then it was God's will for them to be gone and either leave descendant species, or go extinct. I don't think there would be room on the Earth for human beings if all the creatures of the past were alive today. When the dinosaurs for example died out, about 65 million years ago, it left a lot of gaps open for mammals and other types of creatures to fill. On the other hand, maybe they were needed to shape the early mammals and other creatures in the first place by interacting with them.
Do you think G-d actively killed each of these species? or do you think the species died because they were less able to survive and get enough food, etc?
I think that God allowed different things to happen, or willed different things to happen, but worked through the processes that He already created. For example floods, volcanic eruptions, and meteor strikes are natural events, but God can definitely influence them. If a farmer prays for rain, and God grants it, you don't see a big bucket miraculously come down and water the crops, you see a storm cloud roll in and then rain.
I'm also confused by your earlier statements... because on one hand... you sound like you are very skeptical of anything that isnt based on science... and then on the other hand you support a form of evolution that seems even more far-fetched 'to an evolutionist' than intelligent design.
I accept what science has to say, I just believe that God is in control.