Optimus Primevil wrote: so what's stopping them to go back or is such a hell-hole that optimus doesn't want to go back? probably because based on the ending of the first movie he basically tells them to go to earth.
Yes. The planet is basicly destroyed. This was explained in the first movie.
Optimus Primevil wrote: you even read the part about the using them as bait for a trap?).
Yes, but again, how do you plan on
1.- Housing them
2.- You run a very high risk more lives being put in danger in an attempted decepticon rescue.
3.- now you must create a facility that is not large enough, and strong enough to house all the captured decepticons.
Optimus Primevil wrote:they're sentient are they? so by optimus' logic they are entitled to freedom...hence why he kills them all instead(according to the movies).
Your reading his line out of context. In the first movie Ironhide asks..
"Why are we fighting to protect the humans? There such a primitive race." Optimus answer was.."Freedom is the right of all seintient beings". Meaning just because there not as advanced as we are does not mean they don't have the right to be free. The decepticons are planning to take our freedom and chocies away from us. That is not cool under Optimus watch.