I usually look at it through a Cosmotheist-influenced framework. The workings of Nature seem to be working towards higher and higher forms of life, more intelligent forms of life, more perfect forms of life. This isn't necessarily a linear process as one can see from one look at the world around them. It likely isn't even a process with a reachable end-goal, but still, from what we know of Earth and the Universe before us, there is a notable tendency of evolution from less complex to more complex, to lower levels of consciousness, to higher levels of consciousness. Is it ultimately true? I do not know, but I think it answers more questions than it brings up. If this is the purpose of the Whole, of Nature, it is simultaneously the purpose of everything that exists within Nature's embrace, that includes us.
We all have a will to live, and a will to reproduce, and a conflict of wills produces the universal struggle for existence in which the strongest survive and the weak and unfit perish. The goal of all life is to live
, and to flourish
, to live on through one's descendants
'. Hardly anyone could call becoming weaker, sicker and more unfit "good" or "desirable" - this aversion is almost instinctual. Who would want to become less
fit for life? This is the lines that our societies should be organized on. We wish to become stronger, more fit, more healthy and more perfect. To me this is a beautiful goal, one I see in line with Nature at large.
With many things described traditionally as "against Nature", we can judge them by their fruits. Homosexuality brings AIDs, STDs and does not contribute to the continuance of life or the betterment of our people into the future. Luckily the individual is irrelevant to Nature, it is the race or species' survival that bears the ultimate important, thus the homosexual should be rooted out. Race-mixing can be looked at the same way. It is a step down
, a decline
, in my view a contravening of the ultimate purpose of Nature. With trannies, it's filth founded on the false idea of "gender" - ultimately gender in their sense, as a social construct, is irrelevant, sex is what is important to Nature, and sex is founded on a natural division of labor within the human species for the continuance of the species. They should be rooted out as well for this reason, as well as for corrupting the youth.
Notice in how all of these cases - homosexuals, race-mixers, and trannies, all who contravene Nature end up creating their own hell. The faggot becomes ridden with STDs, he is resented by his family, and for the grand finale, he dies out and the wheel of Time rolls impassively on over such a failure. The race-mixer sacrifices the entire lineage of his race leading up to him for sexual pleasure and attraction to lower varieties of humans, producing inferior offspring. If enough race-mixing happens in the society, the society loses the basis for its prosperity and reverts into a lower and more degenerated form, unable to be repaired. With trannies, they realize that mutilating their bodies does not bring them happiness, it drives them to suicide, destroys families, others feel disgust innately at their actions, and they even look hideous, just like everything against Nature. They create their own hell on Earth and reap the fruits of their deeds.
Hope that explains some things, I could write a lot more but I don't want to TL;DR