@mister kitten,
First off you should start be re-analyzing(I'm not saying you haven't already) your use of the words 'humans', 'instinct' and 'natural'.
Regardless of the words we use, there is always a give-and-take process regarding definition for the sake of communicating. Having said that, it really isn't possible for anyone else to actually know what you mean when using these words, no matter how much two parties have agreed to agree.
Having said all that(and a little more) it is of no significance how you choose to describe your witnessing of previous events.(you'll notice that all speaking is a describing of previous event(s)
The only way it could matter to you is if you're trying to justify the way in which you have described these events through other people. The sooner you drop this 'turd' of your fore-mentioned scenario the better.
Now, as for the words you have used.
1. Humans
This is a word which is very indirect and we really don't know what is meant by it. The word 'humans' indicates that there would have to be a
certain finite number of whichever/whomever this word is referencing. Therefore the word 'human' could arise, showing a singular count of the word. It could also be argued that this was the original form. I suggest that even
you do not know what is meant by the word 'human', where are your exact perameters for making the distinction 'human' as is separate from anything else on the planet? In other words,
what is your fundamental basis for definition?
2. Natural
This is an easy one, clearly a fallacy created for the promotion of itself, claiming to be 'superior' to the 'artificial'. It's a classic self-game-playing routine and I don't think I need to analyze it further.(although I will if you still feel the need)
3. Instinct
Within this word lies the hidden excuses for many things which you do. The only problem here is to realize that you don't really need any excuses, nor is there anyone who could excuse you. What I'm trying to get at with this post is that your original question is an attempt at word-play with yourself and are now including your 'playtime' to involve all those who are bored enough to entertain you.
One more thought on 'instinct', anything that anyone has ever done could just as easily be labled 'instictual' as distinct from any other type of behavior. That should be all the information you need to get past the 'turd', 'instincts'.