The Catalyst itself was quite enthusiastic about this caveat, and any other negative condition that goes with the Destroy choice, even going as far as to tell Shepard the Destroy ending solves nothing because people will make synthetic life again and synthetics will continue the cycle of war.

This meant killing off EDI, the geth, those who rely on synthetic parts, and setting societies back many years, in terms of technology. The game did this by forcing players to sacrifice all synthetic life while destroying the Reapers.

BioWare did try to make the choices seem equal, despite the goal to be Destroy all along. With such a strong argument for the Destroy ending, it is a wonder why about half of the players picked other endings.

He even made half of his body synthetic, much like how characters end up in the Synthesis ending route. Saren believed that the only way to settle the score with the Reapers was to join them, rather than fight them. However, instead of the Illusive Man, this ending is tied to Saren from the first game. However, Synthesis is a lot like the 'Control' ending, in that a villain was the first to come up with this idea. This made some players wonder if this ending was considered canon, which explains why more choose Synthesis over control. Of course, the 'Synthesis' ending lacked a preview of a character other than Shepard using the catalyst. However, that is a leap in logic many players did not find sense in, as believing Shepard can control the Reapers puts them on a pedestal much like how the Illusive Man felt about hismelf. The only difference in logic is that Shepard is somehow stronger than the Illusive Man, and thus can control the Reapers. Even when the decision is left to Shepard, the preview of using the catalyst for control shows an image of the Illusive Man, absolutely tying the method to him.

Shepards body mass effect redemption