My Hero Academia and Vigilantes have convergant stories but were written by different mangakas and have different art styles. This difference in art styles is especially delightful in the anime. While both stories are in the same universe, they are definitely different and shouldnt be overly compared to one another.

The reason both children became kind people was because they were helped by heroes. The whole purpose of this was to highlight the tragedy of the League of Villains and show what could have been if even one hero helped them in their time of need as children. You miss the point if you use this to condemn the villains.

Also, Eri broke her horn off and apparently is now quirkless. She probably doesn't have a future as a hero.

Dude ..the ending sucked donkey butt. This issue is but one of many huge disappointments. Poor Horikoshi was ailing so I get why he had to rush things but....the ending sucked. There's no getting around it.

Welcome to reality: all of your dreams not coming true and failing completely in most of your pursuits; and yet still managing to find a little solace in the little things. A person couldn't survive if they didn't.