This depends on what you are calling “evolution”. Young Earth Creationists accept some aspects of evolution. Could you be more specific about what part you do not accept evidence for?
What “we” are you referring to? How do you explain Michael Behe’s acceptance of human/chimp common ancestry if ic systems are such a big problem?
This is rather closely related to your #1. Again, there are absolutely things that can be tested. You are likely familiar with Lenski’s LTEE. There are certainly some aspects that cannot be directly tested, but you might consider exactly what parts of the theory you are referring to.