Ah, I see. So you belong in a feedback thread and not a two way discussion about the way the development team conducts itself. I'll give you a brief answer here but not elaborate further - The Red Hessians, Blood Dragons, and Council are large revolutionary factions whose primary role in game is fighting the militaries of their respective houses. To effectively do this, from a gameplay standpoint, they do need warships of their own. We're no longer playing 4.85 where 5 VHFs can win any fleet engagement, we're in the age of turret steer and turret zoom now.
As to how those ships are maintained, staffed, built, etc, they simply do not exist in the canon lore of the game. Their necessity as an ingame balance asset does not directly reflect upon the lore. The Hessians, Dragons, and Legion only have a few battleships in canon, which is why they aren't the size of houses themselves. This power projection does not exist within the story.