Not sure if you’re referencing some other media, or any of the Eva movies that aren’t canonically linked to the show, but in the show
spoiler
NERV triggers Instrumentality, which, without much explanation, merges all human consciousnesses into 1 hive mind consciousness which may or may not have something to do with Rei being Shinji’s mom, and may or may not have to do with Evas being living creatures borne of Lilith, and somehow eliminates the Angel threat. Shinji’s abandonment complex is neatly resolved by him realizing that the military people forcing him to fight were right all along and that being in the military is awesome if you aren’t afraid to be outgoing.
!Gendo’s only goal in instrumentality was to reunite with his wife, and NERV/SEELE were just after power. Shinji actively rejected both of these goals by restoring the bodies of those who did not wish to be part of the hivemind. The ending was him realizing that the challenges of being human were mutually inclusive with the emotions of love and trust; the human body is effectively an AT field borne of the fear of being truly known by others, and love is the result of trusting others to view part of that “true self.” Instrumentality would’ve made Shinji’s life a lot easier, but he would’ve also lost the relationships he’d built with the people he’d actually come to care for. Also, instrumentality didn’t end the angel threat, rather the angels all had to be killed before instrumentality was initiated to ensure they didn’t just wipe out the human race.!<
Not sure if you’re referencing some other media, or any of the Eva movies that aren’t canonically linked to the show, but in the show
spoiler
NERV triggers Instrumentality, which, without much explanation, merges all human consciousnesses into 1 hive mind consciousness which may or may not have something to do with Rei being Shinji’s mom, and may or may not have to do with Evas being living creatures borne of Lilith, and somehow eliminates the Angel threat. Shinji’s abandonment complex is neatly resolved by him realizing that the military people forcing him to fight were right all along and that being in the military is awesome if you aren’t afraid to be outgoing.
I read the ending quite differently.