Then look at some of the nasty parasites out there.
Then you didn't get a very good education. As a student myself, taking several classes in "evolution" (which isn't a class, but is the topic of classes like anthroplogy, biology, or biochemistry), and a hobbyist in dealing with live things (like yeast, plants, infestations, and such), it is very obvious to me that evolution is true.
For instance, I brew beer. At times I've salvaged yeast cultures for further production from a batch. This you can only do about 7 times in a uncontrolled home environment because after 7 generations of yeast culture you're starting to get off flavors from mutated yeast. They mutate and change their eating habits and the flavor content changes with it. 7 generations here is a misnomer since it's not generation as in offspring, but in generations of saved culture. Each culture goes through millions of generations during the fermentation process, of course, so in reality there are a lot of offsprings during that time. But in any case, yeast changes.
Hops that's used in beer production has changed too. Today we have hundreds of new breeds of hops that didn't exist 100 years ago, or even 50, or 10. Where did they come from? They have new genetic code. No one coded this genetic code in them. They were bred (which is letting nature take its course), and the selected, and voila, new genetic code. And it was not done with GMO. So... sorry bud, but there are thousands of examples of modern use of evolutionary process.