God did not "design" retro virus DNA into human/primate DNA. Viruses do that on their own. Every time you get a cold is proof that they do.
What you're claiming is that God "designed" human/primate DNA in the exact pattern that we would expect from a common ancestor just to fool us.
You're idea is God is really warped.
"What you're claiming is that God "designed" human/primate DNA in the exact pattern that we would expect from a common ancestor just to fool us."
I'm not claiming that at all. God is not out to fool us, but definitely some of us (humans) are fools.
Cold viruses are not retroviruses and cold viruses do not integrate genetic material in to their host's chromosomes.