Ok so here is what is going on:

There is an intergalactic conflict older than humanity. You can think of the two sides as the reptilians and the nords. In reality there are many factions but they are broadly aligned with one of those two. There are laws and there is "peace" but the conflict rages on.

Aliens seeded this planet millennia ago, combining native DNA with their own DNA to create life that could thrive on this planet. The conditions here are not right for the aliens to live here outright. The gasses in the atmosphere, the gravity, the pressure etc. Anyway, many aliens have seeded this planet. These are the different races. There are native humanoids but they are mostly extinct (you can find some in Papua).

Sometime not too long ago (maybe less than 10,000 years) a non-involvement in developing species pact was declared. The aliens guiding our different species left the planet and destroyed the evidence that they were here.

This is where our planet is unique. A rogue group of reptilians continued to provide assistance to the desert races. They are condoned publically by the other reptilians but in private many reptilians and their allies support these rogue factions. The nords are between a rock and a hard place. They cant just break their own laws just because a "rogue" group is doing so. They are waiting for us to achieve a technologically advanced state so that they can reveal themselves and even out the scales. This is the reason human progress has been on hold since the 40s. The reptilians with help from their allies have been suppressing technology. It's why your car only gets 22mpg on 2020.

Now on top of all of this there is a spiritual world. Part of the great tragedy of this planet is that the rogue reptilians taught their followers on this planet how to convene with demons. The anti-human agenda that is the impetus of this thread is due to those demonic influences. These people have sold their souls for power, they no longer have free will.

I have to go now, but hopefully this is enough time spur your thinking in the right direction.