What exactly is some people's problem with liking the Na'vi?

[Human No More]

I've thought about making this thread a few times. There are a few people here who continually go on about how liking the Na'vi is wrong and people should only care about humans.
This is why I like the Na'vi so much:

The Na'vi have everything humans do not. They do not make the same mistakes that humans made, still make, and have never made any effort to change. They don't have overpopulation, they don't have wars between them, they accept their environment as it is and live WITH it rather than destroy it to suit them. They have the ability to make tsaheylu, which both provides a real sense of understanding which humans do NOT have, and if humans did then they would not go around making everywhere the same and covering everywhere in concrete and destroying everything they can find. The Na'vi can see what there is on Pandora and adapt to it.

Physically, the Na'vi are perfect. Yes, perfect. Humans just don't compare. I respect other people's opinions there but that is mine. I have no loyalty to the way I was born just because of chance.
Why do you think I have my arm showing the Na'vi skin underneath?
It's for MANY reasons. It's for the awareness that I gained, how before Avatar I was much like everyone else, but that person is no longer me and I am glad of that. It's to show the inside on the outside, and it is simply because I much prefer the looks of it to being 100% human. I really don't care what other people want to do, but you have no right to tell me that I should only care about humans - indeed, that is one of the things that really angers me about many people and I perceive them more negatively as a result.

Some people are almost blindly attached to humanity. I think they can not see what people do, and that while not everyone is the same, they do still let things happen.
I've always been interested in transhumanism and Avatar has the perfect themes of it, of how it should be. I really couldn't care less if people wanted to be a certain way because that is their choice. Let me make mine, let me choose my interest, my ideal way of being.

Yes, I do not like the marines in Avatar at all, and I find any comments attempting to justify their actions (yes, some people have made them) as badly considered at lest and hurtful at most. I also get annoyed when someone decides to try and make it personal where no intention to offend anyone exists, in doing so implying that they are all the same. There are people exactly like those marines on Earth, yes, but there are also people who are not. Of course, the only reason those people who are not did not appear in Avatar is because where the marines who did thought 'get paid to kill sentient beings? I like it', they didn't take that job.
The truth is, there ARE some humans who are completely beyond any hope, who do not deserve to live. I have never equated all humans with them, but I have never denied their existence like some people. If you decide that everyone is equal to the lowest common denominator in that all humans are like those ones, then YOU are the one saying that about humans in general. Not me.

Neither do I have any apathy towards humans -I do hope that humanity will not wipe itself out (after all, I'm in this too...), but in order not to do so, it needs to change, and quickly. Do I think it will be able to? Perhaps, perhaps not. Do I think it is WORTH saving? Yes- parts of it, at lest, but in order for it to happen it needs to abandon the perception that it is better than anything else, and it needs to stop fighting among itself.

I realise this is probably a waste of effort and the people who dislike the Na'vi will keep on thinking so, but remember this: I may perceive things differently and have a different goal, but I don't have any problem with you, so why do you with me?