User blog comment:Garhdo/Why the Reapers attack Earth/@comment-79.168.132.26-20110114215314

I am going to say this.

The Reapers only known way to re-enter the Galaxy is by the Citadel Dark Space Mass Relay.

Now with Sovereign gone there was NO way to open the Mass Relay, the Human-Reaper COULD open it (just like Sovereign did), the reason to why they target Mankind was likely because they were a easy target, all other races seem to keep to their own space, not because humans are oh-so-special.

"Finding another way" sounded to me that was about finding another way to RETURN to the Milky Way Galaxy since, after all, that IS their primary goal in ME1 and also their LIKELY goal in ME2 by creating a new Reaper.