How did the bad guys know that Sully had left the forest and to go looking for them?

Why did the water tribe abandon Sully and family half way through the big fight, and just reappear and the end to tell them that they are family now?

How many times did the kids get kidnapped and yet left in an unsecured location by supposedly badass military people?

What happened to the bad guys going native like they said they were going to do at the beginning?

And it's pretty much a rehash of the first movie, just in a water setting.

Also, they talk about needing to pacify the locals so humans can settle Pandora because Earth is dying. Why would you settle a planet/moon that had an atmosphere so toxic it renders you unconscious in seconds?

Stunning film, but more of a David Attenborough nature documentary than a coherent story. Enjoyable though.