Ahhh okay that makes more sense :> Sorry I thought you were going with the they believe in evolution so they don't have to believe in god rather they accept evolution because they are atheists heh. Not a fan of the other one that tries to tell others their reasons and such.
I've spent years coming to underststand evolution, I'm far from a expert or anything, but I underst5and it I accept evolution as a fact because everything I see about it works. I see the patterns, I see the information, my concern with creationism is that it just isn't tenable with the facts I see. You have the bible that says one thing, and everything we can study in the world says another thing, I believe in god, and Jesus, so reality is what reality is, there is no assumptions, unless you want to go into nihilist level of questioning things, because to say were making assumptions about evolution is equivalent of saying were making assumptions that reality is real, least with everything I've seen. I acept evolution because there is a great tapestry of facts and evidence woven together by other facts, you have evidence from too many different things, including the age of the earth and things, things that are unrelated to each other excpet that they both point towards evolution.
The pattern of morphology fits the pattern of DNA, wich fits the pattern of unexplainable simularities. Things like genes that we have wich are only explainable if we evolved from earlier species that used said genes, same with many animals, The number of broken genes we and many animals carry that would be useless to us but are useful to ancestors fits what we see.