I dunno, really. Shot it out of the sky? Welcomed it?
I also like the Geth sidequest where you discover they have been preserving old Quarian data/culture. Again, this was in ME1.
EDIT: BTW if your response to synVSorg is "Who cares? Everyone kills everyone." then you missed that this was the bigger point. A cycle of death and destruction no matter your views are on organic and synthetic life. Its just that synthetic capability brings the cycle to a galactic level, more quickly.
As EDI might've surmised, we (as players) have a pretty small sample size of synthetic life to draw from for a basis of comparison. Other than Javik's rather biased description of the Zha'til, there are only the geth and the reapers... and EDI. Did the creators of synthetic life in past cycles react to the creation of that life the same way the quarians did to the geth -- namely: We didn't mean to create it, and it scared us, so we tried to kill it, and it fought back? Who knows.
Is that reaction typical in each cycle? I wonder. I guess it must be, in some form or another, for the catalyst to conclude that conflict is inevitable.