The idea behind the BORG world is that it doesn't matter what you want; once you are taken by someone, you are now on their team. More importantly, you ARE them.
I'm thinking we can expand on the shield idea for colonies. Instead of making it 3 ticks, you could increase the number to a full 24 ticks. Makes it much harder for players to take over.
Maybe instead of building the shield, everyone already has it? And it's on a 24 tick cooldown?