The Catalyst was tasked to preserve life at any costs. After studying various cycles he came up with the solution of Reapers, in which the essence of each race is stored, and thus preserved (As you mentioned ME2, this happens there as well, as it wants to store human essence in the Baby Reaper). That means it achieved its original goal and doesn't see anything wrong with it.
As the Catalyst controls the Reapers, yes, they are just tools for the Catalyst (which for me was quite cool to see and maybe even sympathise a bit with them. That's personal taste though and I'm sure I'm pretty much alone with my opinion on them
)
"If you preserve life it would mean to keep that life intact not liquidize it."
Each organic race that's ever been harvested was stored in a new Reaper, thus preserved, as it was tasked. So the Catalyst's logic makes sense?
Tell me if someone took someone you know and stuck them in a gigantic blender and then kept then in a jar in a freezer would you call that preserving life?
To me being kept in a cryosleep or stasis for an eternity would be preserving life as at some point that life could be continued.
Keeping DNA is just keeping DNA. That's not preserving life.
pre·serve
(prĭ-zûrv′)
v. pre·served, pre·serv·ing, pre·serves
v.tr.
1. To
keep from injury, peril, or
harm; protect. See Synonyms at
defend.
2. To keep in perfect or unaltered condition; maintain unchanged: fossils preserved in sediments; a film preserved in the archives.
3. To keep or maintain intact: tried to preserve family harmony.
4. To prepare (food) for storage or future use, as by canning or salting.
5. To prevent (organic bodies) from decaying or spoiling: preserved the specimen in a chemical solution.
6.
a. To protect (wildlife or natural resources) in a designated area, often for regulated hunting or fishing.
b. To maintain (an area) for the protection of wildlife or natural resources.
v.intr.
1. To treat fruit or other foods so as to prevent decay.
2. To maintain an area for the protection of wildlife or natural resources.
n.
1. Something that acts to preserve; a preservative.
2. often preserves Fruit cooked with sugar to protect against decay or fermentation.
3. An area maintained for the protection of wildlife or natural resources.
4. Something considered as being the exclusive province of certain persons:
For just incase lol.
I suggest to talk to Javik a lot. That guy is basically a walking foreshadowing of the endings. He brings an explanation for how liquefying people preserves them (experience is a biological marker, as is knowledge and skill), he talks about synthetics vs organics conflict more than once, he even mentions a Synthesis-style race in their cycle.
The thing about the endings is that they require full package to make sense of. Books, comics, codex, dialogue, DLC - the player has to have access and pay attention to all of them. Which is why they failed, because the vast majority of the players doesn't have access or care about some of those. Of course, they also failed at execution of some of the aspects of the endings for which I blame time and budget constraints.
Yeah making all info inaccessable is a fail no argument.
"how liquefying people preserves them (experience is a biological marker, as is knowledge and skill)" That is the ingame logic?
Nah that's stupid and a plothole here is why....
Leviathan's were larger and a Reaper is the same size so its a direct organic synthetic hybrid.
Humans are not large and thus were liqufied to be stored in the robotic reaper (breaks reaper specs of being a hybrid lol)
And the protheons.... HAVE NO REAPER! They remain (mostly) intact and then just altered to accommodate the organic synthetic hybrid reaper theme.
Why couldn't this happen to humans? Why must they be a power source for a giant machine?