TelexFerra wrote...
Why not...
...destroy the Omega-4 relay?
...just destroy what looks to be their one-and-only ship?
...BLOCKADE the Omega-4 relay with some stationary thanix canons (if it cannot eb destroyed)
Was genocide really necessary?
*We know one can begin to recover from indoctrination, evidenced by Shepard being able to convicne Saren to kill himself at the end of ME1.
The Mu Relay got nailed by a Supernova and didn't even get scratched. Destroying the Omega-4 Relay might require a tad more firepower than all of organic life combined has.
We do destroy what looks to be their one-and-only ship, but we do not know that said ship is, in fact, their only ship. If it's not, then we've only slowed them down. If it is their only ship...then maybe they'll just build another.
Blockading the Omega-4 Relay sounds feasible, but with what ships? Terminus Systems won't let Council, Alliance, or any authority force anywhere NEAR their space, let alone the relay, and all the pirates outside Council space wouldn't have the firepower to destroy a Collector cruiser. Authority figures don't believe us enough to risk war with Terminus anyway.
Was genocide necessary? The Collectors are waging total war against humanity. The Reapers are waging total war against all organic life. If we don't wage total war back, they will always have the upper hand. Not a single Collector attempted to surrender, or in fact did anything whatsoever that was not very related to the nano-processing or otherwise killing of humans.
To quote Saren (an incredibly strong-willed being, mind you): "Sovereign is too strong." While Sovereign lives, Saren cannot escape indoctrination without his pistol. How much chance do the Collectors, who are cloned and built to be mindless tools, have of breaking Harbinger's hold? How exactly can we break his hold? And until we do, and there is no evidence whatsoever that we are capable of doing so, the Collectors are his weapons, and they're pointed right at us.
The Rachni (who were, incidentally, also at one point tools of the Reapers) were a similar case of total war. They broke indoctrination (or even influence, it may not have been direct control) by being exterminated. Indoctrination is not something that most creatures have a good history of getting rid of.