Sounds a bit like the "brother" who "brought me into the truth."
His way of dealing with the matter of evolution was to ask a person "which theory of evolution do you believe in?" Then, when they could not answer that question, it was supposed to be a thought stopper. However, it was all an excercise in smoke and mirrors - as that opinionated, uneducated knowall twerp had no more idea of how many "theories" of evolution there were than those he was preaching to.
Take any branch of science that you care to mention, and you will find there is still much to learn. Furthermore, this situation is unlikely to change anytime soon. However, that fact in no way means that science is all nonsense, i.e. just because there is still much to learn:
This very much includes evolution.
Bill.