You have multiple endings so nothing is decided.
That was exactly my point. It can go any way (the player wants).
Why does anyone think letting the reapers survive is a good idea?
Every person is different, every person has their own reasons why it is or is not a good idea. Each Shepard can be different if you really roleplay one.
A singular story imo cannot have multiple possibile endings. It just does not make any sense.
I'm not really sure what you want to tell me here. You mean it's silly that you can go 3 different ways (or 4 counting Refuse)?
Again imo. Interesting how even after all this time peeps still think about bloody starjar.
Synthesis...Let's make friends with the reapers. Good Idea, ignoring the fact they have killed trillions of sentient beings.
Control... Good idea, lets become a reaper, overseer of the last remnants of humanity stored within the reaper itself. Brilliant.
Destroy. Destroy Reapers. I fail to see how this is a bad thing. The reapers are gone. Reaper threat for this and all future generations solved.
You say "imo". Yes, it's your opinion, and that's fine. Other players have theirs, which is just as fine.
And does it really surprise you people are still talking about the Catalyst? There are new players, I'm only in 1 1/2 years for ME myself, and have finished ME3 only in February this year. So old and new players will still discuss such things. Especially since the ending is not clear, there's a lot to interpret, different ideas, different perceptions, different opinions.
I also like Destroy best and picked it every time now after trying out Synthesis in my first run, but that doesn't mean I have to dismiss other player's reasoning for picking Synthesis or Control. There are some interesting ideas going around. That's why I said the ending is so open. While you have your own view on what will happen, another player will have a very different view on this and it's still just as valid.