Very funny that when Arknights first came out people made Kiryu and Majima jokes out of Texas and Lappland and 3 years later when they finally get an event Hypergryph is like "No it unironically is like that in every way" and to make sure there's no room for misunderstanding, Lappland drives a truck into a building and employs a special Lappland Everywhere system throughout Il Siracusano
It's not even just in surface level similarities, I'm absolutely not joking when I say Lappland is Majima. For how brutal Lappland is in this event, to the point of frightening hardened enforcers from how easily she can butcher them, you never see her harm any civilian or outsider like the mafiosos do. She's actually quite polite and amiable, turning up the violence only on those who only speak in violence, and even randomly showing up to save Texas' friends from getting caught in turf wars.
When questioned about why Texas' enemy keeps helping Texas, Lappland answers that it's because she wants Texas to see for herself that the Underworld is inescapable, that even if Texas believes in good and even if she's strong enough to physically win every battle, she cannot create change, and cannot run away to a gentler life. Lappland reasons that if she helps Texas in every step of the way, Texas still won't escape, and that despair will prove Lappland was right.
Because Lappland actually feels the same. She hates the mafia and the power struggles and the terror they sow on regular people, and her behavior as the mad dog Lappland is her own form of rebellion: if she's over the top to the point where they fear her, to the point where they expect her to be uncontainable and act more as a force of nature they can point rather than as a soldier they can order around, then she has that little bit of freedom.
So when Lappland sees Texas turn her back on the underworld and simply fight her way out with her unbeatable strength, it's agony to her. Lappland needs to see Texas get dragged back in repeatedly and feel like there's no escape, because Lappland herself chose to act like there was no escape. If Texas manages to fight hard enough to escape the underworld, or even scarier, to enact real change, then that would mean Lappland, her equal, could also have done so, if she only tried harder.
The only difference between them was the strength of their will and ideals.
