My Theory (SPOILERS)

Ok so I saw Prometheus last night and holy shit was I more confused after seeing it than before. Anyway I've been doing alot of reading online I think I may have pieced together what seems like a legitimate theory for all the lingering questions still out there. I'll start from the beginning: At the very beginning when the Mala'kak (Space Jockey) drinks the black goo I gathered that this is the first black goo the Mala'kak's have made and its sole purpose was to create human life. The first Mala'kak sacrifices himself to give birth to humanity. Also if you noticed the ship that is departing as he drinks the black goo you'll notice that is looks nothing like the warships we see later on, making me believe they were not hostile towards creating humans at the time. Anyway he dies and humans slowly evolve over time from his DNA. Somewhere down the road the Mala'kak's decide humans are destructive in nature and decide to wipe humans out before their curiosity of where they came from leads the humans back to them. So they alter or engineer new black goo that is geared towards breeding a bio weapon species that will infest Earth like a plague and wipe humanity out. So they start manufacturing this black goo and housing it in these vases over several ships that are to carry the cargo to Earth. Only somewhere along the way to Earth the black goo infected one of the Mala'kak's, who then possibly mated with another Mala'kak, who in turn gave birth to a Xenomorph in the Facehugger stage of its evolution. If you are not familiar with the evolution of the Xenomorphs it basically goes like this: Black goo-Egg-Facehugger-Chestburster-Xenomorph full grown. From here it latches onto another Mala'kak and impregnates it with a Chestburster. I like to believe the Mala'kak that was impregnated was the one who went to pilot the ship and after sending a distress signal the Chestburster burst out of his chest leaving him dead in the pilot seat. This being the Mala'kak we see in the first Alien movie and also the same one who sent out the distress signal. Anyway moving on the Chestburster evolves rapidly into a Xenomorph, possibly a Queen, and lays all the eggs that the team in the first Alien movie found. Now I know there is a ton of speculation as to why the black goo has different effects on different people. And I too had the same question but recently answered it myself. When the black goo met with the worms in Prometheus it altered them into bio weapons. When it met with Fitfield it altered him into a bio weapon as well. I think when David gave the drop of the black goo to Holloway it was slowly altering him into a bio weapon as well but he didn't make it that far before he was burnt toast. Anyway I believe it also altered his lil babies swimming around into bio weapons and when he had sex with Shaw she became impregnated with one of the bio weapons. I still don't understand how she herself didn't become infected with the black goo. She was never altered, she just gave birth to a Facehugger. Now I see that people are confused saying that the Facehugger was infact not a true Facehugger, and that's where they’re wrong. If you do a little research you will find that this black goo adapts to its host. A perfect example is the Facehugger impregnating the dog in Alien 3 thus giving birth to a dog-like Chestburster. So I believe this was a Facehugger born differently from the Facehuggers in the first Alien movie partially because I believe the Facehuggers in Alien are born from a Queen Xenomorph, and the Facehugger in Prometheus was born from a human. Anyway the Mala’kak’s left the planet alone and more than likely didn’t allow anyone working on the planet to return to their homeworld. So the Mala'kak we see that was in stasis was left behind to more than likely sleep for the duration of the ride to Earth but they never left the ground. He was unaware of the disaster that took place so when he awoke he still assumed the mission to deploy the bioweapon on Earth was in place so he tried to carry out the mission. So playing off of the last paragraph the Mala’kak’s knew that going back to the planet was not an option and would only threaten their very own existence. However they remembered how curious humans were and they realized how easy it would be to just lure the humans to this planet. So they visited Earth and sent them an invitation map to come visit the planet but realized later on that humans were not advanced enough for space travel. So they periodically came back till eventually we had the technology to do so and because we are so damn naïve and curious we flew out into space to meet our own demise that was elaborately planned all along. They never wanted to meet us, only lure us to this planet that was filled with a bio weapon that’s sole purpose was to wipe out humans. Anyway that is my ultimate theory. When you look at it from this perspective though, it makes perfect sense and also gives a sense of closure. However I didn’t seem to care for the cheesy ending. David all of a sudden knows where the home world is and knows how to pilot the ship was a bit farfetched for me. Too much room to make another movie, which wouldn’t be a bad thing if I didn’t have the sneaking suspicion they will ruin the series like most series do with a sequel. Then again Aliens was a damn good sequel. I would like think a good sequel would be Shaw discovers the secrets I just explained and then she goes back to Earth to recruit the aid of mankind and they set out to start a war with the Mala’kak’s. That would make for a great sequel or even trilogy. Anyway that’s my theory so please let me know what you think! Comments negative or positive are definitely welcome I like to get both good and bad feedback as it helps me alter my theory where needed. Thanks!