Sure.
What is Nature?.
Nature, in the broadest sense, is equivalent to the natural world, physical world, or material world. "Nature" refers to the phenomena of the physical world, and also to life in general. It ranges in scale from the subatomic to the cosmic.
The term "nature" may refer to living plants and animals, geological processes, weather, and physics, such as matter and energy. The term is often refers to the "natural environment" or wilderness—wild animals, rocks, forest, beaches, and in general areas that have not been substantially altered by humans, or which persist despite human intervention. For, example, manufactured objects and human interaction are generally not considered part of nature, unless qualified as, for example, "human nature" or "the whole of nature". This more traditional concept of "nature" implies a distinction between natural and artificial elements of the Earth, with the artificial as that which has been brought into being by a human consciousness or a human mind.
Now its your turn. What do you mean by abnormalities? Do you mean that nature creates some things more than others? For instance because nature creates more right handed people than left handed people it's perfectly okay and rational to say left handed people are
abnormal, but you'd simply be saying there are more right handed people than there are left handed people. That's a perfectly true statement. You wouldn't be saying nature was
wrong for creating left handed people. That would not be a scientifically sound statement. That would be an argument about subjective morality, not science.
In the same vein nature creates more heterosexual people than homosexual people but nature isn't
wrong for creating homosexual people. That would be another moral judgment and moral judgments are not scientific arguments. They are not objective observations about nature which are neutral and dispassionate. We don't say nature is wrong from crashing a meteor into the planet and wiping out life, or for creating tornadoes, or wildfires. It's not wrong for creating left handed people, red heads or homosexuals. Biology is a chemical process that acts according to physics, not your feelings.
What? I don't know what you're even asking here.
It does you dumb Bingo. Nature creates the entire natural world around you. If it exists naturally its because nature created it. Things nature couldn't create you wouldn't see because they wouldn't exist. You can see homosexuals exist and thus you can be sure nature allows for it.