Evolution is a theory, and in science, that’s actually stronger than a “fact.” A fact just describes what we see. A theory explains why we see it, and makes predictions that can be tested against new evidence. That’s why theories are the highest form of scientific knowledge: they unify facts into a framework that keeps proving itself over and over.
As for your point about faith: you’re right that I don’t accept things on faith alone. But neither do you, at least not consistently. You don’t believe in unicorns, the Easter Bunny, or the tooth fairy, even though plenty of people (especially children) have believed in them. You’ve carved out a special exception for your particular religion, while rejecting thousands of other religions past and present that also claim faith as their only method of knowing.
The scientific method is different. It’s a process designed to figure out what’s likely true by testing explanations against reality. It has a track record of producing reliable results, medicine, technology, physics, biology, things that work regardless of belief. Faith, by contrast, doesn’t have that kind of predictive power. That doesn’t mean faith is automatically wrong, but it does mean it’s far less reliable (if reliable at all) as a way of knowing.
So, when you say I’m rejecting your religion by applying the scientific method, what you’re really saying is that I’m refusing to accept an inferior method of knowing as equal to one that consistently works. And yes, I apply that same standard to your religion as I do to every other claim. That’s not bias, that’s consistency.