No, here's the real fix.   Get rid of island ownership. Bring back claim flags, but in limited numbers.  Create two home port flags, one for land, and one for a harbor.  Through balance testing, determine how big these need to be for companies of 75 people to build a reasonable sized base, and reasonable harbor. Anything inside those land claims, are invulnerable.  Green anchored ships are invulnerable inside the harbor claim. Create smaller claim flags for outpos