The debates on Evolution vs. Creationism have 2 inherent flaws:
1)People mistakenly think evolution explains the origin of life and pull that into the debate. Evolution makes absolutely no claim as to how life started.
2)There are 2 kinds of evolution, and people debate both as if they're talking about the same thing. That leads to exchanges like "(Macro)evolution is still just an unproven theory. " That would be followed by "(Micro)Evolution is a proven fact. Anyone who can't get that through their skull is retarded." Both people are right. Dogs have evolved different traits over hundreds of years of breeding. They can be bred for short hair, long hair, size, even temperment, but it's still a dog. You can't breed(or randomly mutate) a dog such that you end up with a dog with tusks or wings. That's microevolution. Macroevolution is still a theory. That's what says a monkeys can eventually mutate into a human.
Why do people have a trouble believing in macroevolution? If you look into cellular biology, and the nitty-gritty details,
a single celled organism randomly mutating to work together with other cells in a colony;
an organism mutating such that it gets a new sense, like sight or hearing;
a caterpillar randomly mutates so much it spins a cocoon and every organ in its body changes completely and a butterfly comes out;
Those are all DRASTIC changes with huge jumps in complexity, and all the changes have to be done happen at once just right or the organism dies. There's no middle ground there. It's either one or the other, especially that butterfly. There are all kinds of irreducibly complex things in nature. They're too complex to happen by chance, and they can't be simplified into a more primitive form. That means they couldn't have slowly gotten more complex over time. That's a big thorn in the side of the "Things just got more & more complex over millions of years" way of thinking. Those are the kinds of things, (along with religion,) that prevent some people from embracing macroevolution whole heartedly.
Oh, those drug resistant bacteria are only drug resistant because they lost a trait, not gained a new ability. When their more normal kin are reintroduced, the drug resistant strains can't compete with their more healthy cousins.
Also, Creationists believe God created all things. The fact we share DNA with other things on this planet doesn't disprove God at all. It's just more evidence we all had a common creator.