1. What is proof? Is there really any PROOF of anything? You can show me a bunch of evidence, but it's my decision whether or not I want to accept it as evidence. Based upon the SAME evidence, one person may see it as PROOF, whereas another would NOT. What may be proof to me may not be proof to you. I behold nature and see it as solid proof of God's existence, goodness and handiwork (Romans 1:20).
2. Einstein saw this as well. Perhaps you don't see nature as evidence of God. But the paramount question still remains, where did all this come from? If it evolved from stardust, then why do we still live amongst single one-cell life forms (not politicians).
3. Why do humans have such high intelligence, but animals do not. Why do humans have a conscience, guilt and morals which animals do not have? Where did the moral conscience separate from the species?
4. The answers don't exist! Humans are humans and animals are animals (1st Corinthians 15:39). No wonder the Bible speaks of false science (1st Timothy 6:20). Why false? Simply because "science" means "to study." There is NOTHING to study about evolution! Evolution is NOT testable, repeatable or observable. If evolution were true, there should be millions of proofs of it. There is not even one!
1. The evidence and proof is there, you are either ignorant of it or choose not to accept it. That doesn't mean it doesn't exist and it's really not subjective either. You say nature is evidence of god, but there is actually no proof there, you're just using it to justify your own beliefs.
2. Actually, no he didn't, but I digress. We have actually done experiments to replicate the conditions we believe were present in early Earth and found that quite rapidly, organic, self-replicating molecules form rather rapidly. Basically, the first building-blocks of life.
You also don't seem to understand natural selection or evolution. According to evolution and natural selection, why wouldn't we be living with single-celled organisms? would be the more appropriate question. When an organism evolves over long periods of time, it thrives, but that doesn't automatically mean all lesser evolved organisms die out. Some may die out, if they're competing for similar resources, but not all organisms thrive in the same environments. You're also ruling out synergistic and parasitic relationships where the evolution of of one species can eventually lead to a beneficial relationship with lesser organisms. Digestive acid-loving bacteria thrive in the stomachs of a whole range of species. The tape worm evolved and thrived because it found it thrived in a new environment in the intestines of mammals. So your one-celled argument is flawed.
3. Quite simply, we evolved a higher intelligence and thrived because of it. Cats and dogs thrived because they needed fast reactions to hunt their pray, thus their brains evolved to be smaller, but with fast nervous systems and a basic and hormonal instinct to attack anything that moves (just watch a cat play). We didn't evolve that way, we thrived because our brains enabled us to develop tools which could be used for multiple tasks. And who says animals do not have a moral conscience? How exactly have you tested this? In fact, we've selected for animals with a "morals" in our breeding and domestication programs over the years. Further proof is that dolphins will not mate with a sibling. Morals do exist in non-humans, they just may differ from ours.
Human morals are open to debate as well. A head injury can completely alter you personality and cause you to lose all your morals and behave sociopathicaly. And what of the people who are born, unable to feel empathy for others? These mental conditions exist in humans, and in many ways causes people to behave "like animals".
4. From the massive fossil records, to anatomy, to the fact we share huge (> 99%) amounts of DNA with apes. In fact, nearly 50% of the DNA in a banana is also present in us. If you go right down to the molecular level you can see how a few mutations can cause a single protein to completely change it's function, which can then have a knock on effect on the cells metabolism, effectively evolving that cell.The proof is all around us, you just need to look at it. In fact, the principles of evolution are actually being harnessed for new therapeutic drugs, some of which are already on the market, others going through clinical trials. You say it's not testable, repeatable (which is fair as the randomness of evolution means it's unlikely to give the same results twice) or observable, yet it's been tested and observed many times.