Why the hell would you choose Earth, your a random race of alien refuges who came out of nowhere, and if you think they will help you against the Life Ships here are a few things to note, it has been hundreds of years since the ship was downed, humans may not exist anymore, you have no credible evidence if any exists anymore, they may think you downed the ship, they may shoot on sight, they may not even care, and finally what makes you think that your going to get that ship unearthed and have it be able to deal with antimatter, and super ships, I think you have to take a look at yourself breaking reality and logic before you accuse me of it, antimatter containment and mass production is far more likely than force fields, because we already know how to contain it, also going to Earth in a ship and saying help us fight the mean enemies AT BEST will get a few volunteer squads, but you have to realize interstellar warfare is expensive and no one wants to pay to fight aliens who are not an immediate threat, actually no lets rephrase that, you are a race of aliens who know the location of Earth expecting the humans if you get a hearing to dedicate tax dollars to helping you fight a war against aliens who don't know the location of Earth, let me give you a hint on how ridiculous this is, I live in America where 15% tax rate on millionaires is considered to much, also your expecting them to die for you? If anything the alien race that knows their location is on top of the priority kill list. In short stop holding me to higher standard to yourself, stop making complaints about things I do one they become relevant to you and not before, and for the love of god have you ever read Childhood's End by Clarke? Yeah the dragon look a likes aren't scare anyone. /sarcasm.
Sorry if this seems harsh but please don't question me if any of your post contain the words COLD FUSION, no pseudoscience for you if your going to question borderline proven science for me.