By Suicide, I meant OLD Kathryn handing over her infected body to the Borg for Assimilation, and then saying "I always knew this was going to be a one way trip" which is complete horse hockey, since her ORIGINAL plan had been to sneak/fight her way through the Hub, onward to Earth, barely causing more damage to the Borg infrastructure than necessary to complete a breach, and get home with all hands accounted for.
The future from which Admiral Janeway came from is destroyed and gone, where everyone who had been alive and safe in that complete universe, as their lives stood in 2404, are rendered non-existent by Kathryn's actions.
Inexistential?
The only reason not to bring any one with her, Miral even, is so that anyone from the past doesn't know how she was involved in that Ferengi scandal mentioned in the news report at the beginning of the episode.
If Janeway was facing jail time, serious jail time, then it's no wonder she tried to runaway and side step the consequences of her actions, becuse that is her nature.