I live in central europe, I could travel across the entire continent in a day for not that much money and could go anywhere in the eastern part of my country for 60€/year, I could go to any western part of my country in 5h for less than 20€
this dark magic I could use is called a “train system” also reffered to as “good public infrastructure” by many
maybe they just assimilated hostile species, but I think they’ve always been kind of invasive.
I imagine the borg started as a peacefull cybernetic species who radicalised them self or their ai made some mistakes maybe. Or they started as an ai that became evil and assimilated biological life on it’s quest to perfection