They observably have it. Who do you think gave it to them?
It is. In fact, the generic meaning of "evolution" is "change", literally "to unroll."
evolution (n.)1620s, "an opening of what was rolled up," from Latin evolutionem (nominative evolutio) "unrolling (of a book)," noun of action from past participle stem of evolvere "to unroll" (see evolve).
Used in medicine, mathematics, and general writing in various senses including "growth to maturity and development of an individual living thing" (1660s). Modern use in biology, of species, first attested 1832 in works of Scottish geologist Charles Lyell. Charles Darwin used the word in print once only, in the closing paragraph of "The Origin of Species" (1859), and preferred descent with modification, in part because evolution already had been used in the discarded 18c. homunculus theory of embryological development (first proposed under this name by Bonnet, 1762) and in part because it carried a sense of "progress" not present in Darwin's idea. But Victorian belief in progress prevailed (and the advantages of brevity), and Herbert Spencer and other biologists after Darwin popularized evolution.
In biology, a change in allele frequencies in a population over time. Or more simply, "descent with modification."
It's not about the origin of life. Even Darwin just assumed that God created the first living things. Evolution is only about the way existing living populations change over time.
However, evolution is about the way new species arise from older ones:
Before the time of Charles Darwin, a false idea had crept into the church—the belief in the “fixity” or “immutability” of species. According to this view, each species was created in precisely the same form that we find it today. The Bible nowhere teaches that species are fixed and unchanging.
Speciation, the formation of new species, is not evolution in action. Rather, it demonstrates the incredible variety God put within each created kind.
answersingenesis.org
Notice that AIG has a fundamental misunderstanding of what biological evolution is. They accept macroevolutionary change (speciation), but don't want to accept the scientific definition of evolution.
I'm just showing you what it is. What seems to be the problem for you is not evolution, but a consequence of evolution, i.e. common descent. AiG considers common descent to be true, to a certain level, but not beyond new families of organisms. The evidence shows that is incorrect, but they do recognize that old taxa give rise to new ones.
Since we observe it happening, I have to conclude that God made it so. It's His creation, after all. On the other hand, science didn't make evolution; it merely observes and learns about it.
We just aren't going to agree on the difference between things presented in the Bible as allegorical or figurative things, and those presented as historical events. No point in hashing over that. Suffice to say that there are large numbers of Christians on all sides of that issue. And none of that means any of them are not good Christians.
The text itself tells us that some of it is figurative.
Yes. Theology will not save you. A heart open to God and your fellow man will save you. That's what He says. Notice that in Matthew 25, Jesus says that among the sheep He will save, will be those who ask "when did we do anything for you?" They clearly are not Christians, who would know the answer. But they did His will and as St. Paul remarks are justified by natural law God has given them.
Romans 2:14 For when the Gentiles, who have not the law, do by nature those things that are of the law; these having not the law are a law to themselves:
So if you believe in Genesis your way and someone else believes in other ways, it's not an issue for God. Since both of you believe God as best you can, both of you are putting faith in God.
It's really a mistake to try to take Genesis as a science text. It won't help you understand nature, and it won't help you understand God.