Ultimately Zamasu Won in the whole zero mortal plan so literally EVERYTHING has been thrown out to the window.

It wouldn't matter if he goes to see all the people he cherished are alive in another alternate timeline. Trunk Even Said to Gohan that He Failed! All the people he will see in that new timeline aren't the same people, and he will never get them back. The people Trunk will meet are NOTHING more than the empty Hollow of their former selves. Trunk and Mai would be living in a world full of lies.
Trunks gets to go back to a point before a lot of stuff went down but the world is still in ruin and the majority of people in the world are dead. On top of that, he can't UN-SEE or forget everything he experienced. His mentor and best friend's corpse, his mother being murdered, countless people dying that he was unable to protect..

Trunk will always be the most tragic character in this series and it's one of the reasons he's my favorite. He failed but he's still an AMAZING character and regardless of any asspulls, his failure or ANYTHING you gotta respect and feel for the dude.
It was an out of body experience that shook me that i had to regroup and recover from.
Seriously
