We are speaking about Darwinian evolution which based on mutations and natural selection and not a directed evolution by God.
Consider, FearGod, that there is not necessarily a distinction here. One can no more say that Darwinian evolution is not directed by God than one can say that God is not aware of anything else on Earth.
Also, you talk about Evolution as if it were speculative or a matter of faith. And that is simply not the case. It is demonstrated, and has been independently demonstrated even back in the 19th century. It has practical applications and has indeed been used as the basis for very lucrative activities for many decades.
If it is a matter of faith, then it must be some powerful and very reliable variety of faith!
It is a fact that no one know what had happened millions of year ago that forced species to evolve to a new different kinds than the previous ones.
Species keep evolving to this day. A few years ago bacteria capable of digesting nylon developed spontaneously, for instance.
Your wording suggests that it was an ancient event and that it was forceful, but that is not the case, or at least no more so then than it is now.
Do you understand what selective pressure is? The factor which directs evolution, and the reason why it isn't really a random process?
Can we prove that God wasn't involved,
Of course not! For all anyone knows, he was.
so who think that God wasn't involved then he has a blind faith on Darwinian evolution and the one who think that God was involved then he has blind faith on religion.
I beg to differ.
One may have or lack faith about whether evolution was meant to happen. I won't discuss yet whether it is blind or not, but let's call it faith. So far so good.
However, you are comparing completely separated beliefs here. Evolution and religion, to put it bluntly, are not the same thing, and are not supposed to be opposed either.
Evolution isn't about stating that human beings are definitely not meant to exist by the will of God, nor anything similar. It is instead completely possible and reasonable to accept both Evolution and faith in a Creator, personal God. Perhaps well over a billion people do just that, and I fully expect that most people in the world will eventually follow their lead.
Evolution is no more a challenge to belief in God than, say, the existence of the Egyptian Pyramids.