99.9999% or more of the universe is hostile and deadly to humans, even the surface the so called perfect Earth has vast regions deadly to humans. How is this evidence the universe is perfect for humans?
Humans arose via evolution through natural selection. Natural selection is deterministic not random. We have no idea if intelligent beings can or cannot arise in a universe that is different from ours. The idea of the Earth being perfectly designed for humans or even life is an illusion. Life evolved to fit the Earth not the other way around. It can be said that life also changed the earth via various processes to fit life or at least complex life. You understand that the earth was drastically different billions of years ago...right? For almost 4 billion years the Earth was hostile to complex life much less humans. I can't see how you can assert the earth or the universe is perfect for humans. We can in fact think of ways the Earth could be better for life. Some authors think the earth may actually be a minimally habitable planet but that is nothing but speculation...
Even the Pope accepts this version of the universe and Earth as accurate... Seems a bit odd that you disagree...
God doesn't allow what you call sin and evil he created it, see post #23 in this thread... In fact the idea of heaven, hell, and the devil was borrowed from the Zoroastrian religion. Before the Jews were exposed to Zoroastrian culture they did not have a devil or hell and some would say no heaven either, Satan was an angel picked out by god to do his dirty work, never the same angel and not an evil angel like Christians seem to think...
This is a very complex issue, your take on it is not particularly sophisticated, kindergarten level religion at best. As I have said before you are welcome to your beliefs, I would personally defend your right to believe as long as your belief doesn't impinge on the rights of others, but your quest to somehow justify your beliefs via the holy book you admire is fraught with flaws.
You should be aware that the Bible your currently use is not in any sense an original document, it dates back to 800 ce at best and even that is questionable.
Sin is in y mind simply breaking the parochial customs of your culture, evil is subjective as well. Go back a few hundred years and both sin and evil would different that what we think today.
Keep your beliefs and feel welcome to them but your quest to prove a point about reality based in your religion is, I am afraid, doomed to failure...