That is true, but consider this, if I did do something that led you to be killed intentionally, I certainly would be excluded from anything that was an attempt to get home, or rectify the situation.

Therefore, the majority of everyone here, save those that find this place a hideout from their other crimes have nothing to gain by remaining stand-offish.

Furthermore, the Animus like their games a lot, so they might amuse themselves by taking away something vital, like everyone's intelligence needed to reverse this.