A Dangerous Force Indeed - Tumblr Posts
THESE guys are nomads:

Harmless, defenseless, and the only threat they faced were Badger Moles, not Fire Nation Soldiers:

The 'Air Nomads' are Airbending Monks who live in monasteries:

Whose abilities include this:

Also, this was what an Airbender Monk in Aang's time were capable of:

What happened to them? They died fighting like Soldiers, instead of being rounded up and executed in a genocide.
The Last Airbender is Anti-Fire Nation Propaganda
The Fire Lord, Ozai, is dehumanized due to his portrayal as a one-dimensional, evil Overlord.

The Fire Nation citizens are portrayed as brainwashed, and any support for the beneficent elements of the Fire Nation is disregarded as brainwashing. This is another attempt by the Anti-Fire Nation Kingdoms at propagandizing for their war against the Fire Nation.

The Water Tribes, Earth Kingdom, and Air Nomads have their positive elements exaggerated and their flaws are downplayed to enhance the image of the Fire Nation's 'evil'. Conveniently forgetting, of course, that:
The Water Tribe is sexist.

But the Fire Nation treats Women with respect, and allow Women into what would be considered male-dominated industries. Like Prison Guards.

The Earth Kingdom is terrorized by a secret police of Earth Benders.

Created by the Avatar herself.

Who has her own Kyoshi Warriors enforce an isolationist policy that kept Kyoshi Island from developing beyond a tribal society or community. A society which worships Kyoshi as a Goddess.

The Earth Kingdom's state of hierarchal dominance and stratified living persists decades into the future and is never fully eradicated despite the passing of however many Avatars there were since Kyoshi.
Furthermore, the Benders of both the Water Tribes and the Earth Kingdom either oppress the Non-Benders, or enforce policies that oppress the Non-Benders. Master Pakku and the Dai Li are two of the more prominent examples of such oppression.
This contrasts the Fire Nation which values both Benders and Non-Benders. Azula's most trusted associates are both Non-Benders.

While two of the most dangerous people/groups in the Fire Nation, Master Piandao;

And the Yuyan Archers are Non-Benders. Indicating that there is some form of Meritocracy that operates within the Fire Nation. A meritocracy that is almost non-existent or heavily biased in both the Water Tribes and the Earth Kingdom.
The Air Nomads have no Kingdom of their own. This means they do not have a population from which they can draw Airbenders to replenish their numbers. Since the Airbenders are also Monks as a whole, it is very likely that the Air Nomads take Airbenders from the other three factions to fill up the Air Temple.
Further considering the fact that the Air Temple Monks are willing to force Aang into his Avatar training against his wishes. So much so that Aang preferred to risk his life in a storm. It is highly likely that the other three nations have no say when the Air Nomads come looking for Air Benders amongst their citizens.
Now, am I saying that the Fire Nation has its pros and cons?
No.
I'm saying that I'd rather be born in the Fire Nation and that all the negative aspects we are shown in the show are due to propaganda published by those who fear the challenge of the Fire Nation, and its progressive ideas, to their individual power.
And Remember.
